diff --git a/frontend/modules/commercial/components/ClientAddressBlock.vue b/frontend/modules/commercial/components/ClientAddressBlock.vue
index ff2c574..db956fe 100644
--- a/frontend/modules/commercial/components/ClientAddressBlock.vue
+++ b/frontend/modules/commercial/components/ClientAddressBlock.vue
@@ -191,6 +191,7 @@ import {
 import { useAddressAutocomplete, type AddressSuggestion } from '~/shared/composables/useAddressAutocomplete'
 import type { CategoryOption, RefOption } from '~/modules/commercial/composables/useClientReferentials'
 import type { AddressFormDraft } from '~/modules/commercial/types/clientForm'
+import { sanitizeAddress, sanitizeEmail } from '~/shared/utils/textSanitize'
 
 // Masque code postal FR : 5 chiffres.
 const POSTAL_CODE_MASK = '#####'
@@ -284,9 +285,23 @@ const addressLoading = ref(false)
 // Conserve les suggestions d'adresse pour retrouver ville/CP au moment du select.
 let lastAddressSuggestions: AddressSuggestion[] = []
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : voie / complement / ville = profil
+// adresse, emails de facturation = profil email.
+const FIELD_SANITIZERS: Partial<Record<keyof AddressFormDraft, (v: string) => string>> = {
+    street: sanitizeAddress,
+    streetComplement: sanitizeAddress,
+    city: sanitizeAddress,
+    billingEmail: sanitizeEmail,
+    billingEmailSecondary: sanitizeEmail,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof AddressFormDraft>(field: K, value: AddressFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as AddressFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Revele le 2e champ email de facturation (clic sur le « + »). */
diff --git a/frontend/modules/commercial/components/ClientContactBlock.vue b/frontend/modules/commercial/components/ClientContactBlock.vue
index e4284c7..0ecfd86 100644
--- a/frontend/modules/commercial/components/ClientContactBlock.vue
+++ b/frontend/modules/commercial/components/ClientContactBlock.vue
@@ -71,6 +71,7 @@
 
 <script setup lang="ts">
 import type { ContactFormDraft } from '~/modules/commercial/types/clientForm'
+import { sanitizeEmail, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 
 // Masque telephone FR : 5 groupes de 2 chiffres (la normalisation finale reste
 // serveur, cf. formatPhoneFR re-applique a la valeur renvoyee).
@@ -99,9 +100,22 @@ const { t } = useI18n()
 // Alias local pour la lisibilite du template.
 const model = computed(() => props.modelValue)
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : on retire les caracteres parasites a la
+// frappe. Noms = profil personne, fonction = texte libre, email = profil email.
+const FIELD_SANITIZERS: Partial<Record<keyof ContactFormDraft, (v: string) => string>> = {
+    lastName: sanitizePersonName,
+    firstName: sanitizePersonName,
+    jobTitle: sanitizeFreeText,
+    email: sanitizeEmail,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof ContactFormDraft>(field: K, value: ContactFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as ContactFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Revele le 2e numero (RG-1.02/1.20 : max 1 secondaire, le « + » disparait). */
diff --git a/frontend/modules/commercial/components/SupplierAddressBlock.vue b/frontend/modules/commercial/components/SupplierAddressBlock.vue
index 2c6eec6..9aec0da 100644
--- a/frontend/modules/commercial/components/SupplierAddressBlock.vue
+++ b/frontend/modules/commercial/components/SupplierAddressBlock.vue
@@ -169,6 +169,7 @@
 import { useAddressAutocomplete, type AddressSuggestion } from '~/shared/composables/useAddressAutocomplete'
 import type { CategoryOption, RefOption } from '~/modules/commercial/composables/useSupplierReferentials'
 import type { SupplierAddressFormDraft, SupplierAddressType } from '~/modules/commercial/types/supplierForm'
+import { sanitizeAddress } from '~/shared/utils/textSanitize'
 
 // Masque code postal FR : 5 chiffres.
 const POSTAL_CODE_MASK = '#####'
@@ -238,9 +239,21 @@ const addressLoading = ref(false)
 // Conserve les suggestions d'adresse pour retrouver ville/CP au moment du select.
 let lastAddressSuggestions: AddressSuggestion[] = []
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : voie / complement / ville = profil
+// adresse. Les autres champs (CP, bennes, selects) ne sont pas filtres ici.
+const FIELD_SANITIZERS: Partial<Record<keyof SupplierAddressFormDraft, (v: string) => string>> = {
+    street: sanitizeAddress,
+    streetComplement: sanitizeAddress,
+    city: sanitizeAddress,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof SupplierAddressFormDraft>(field: K, value: SupplierAddressFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as SupplierAddressFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Previent le parent (toast unique) que l'autocompletion est indisponible. */
diff --git a/frontend/modules/commercial/components/SupplierContactBlock.vue b/frontend/modules/commercial/components/SupplierContactBlock.vue
index f14d91f..f7930f8 100644
--- a/frontend/modules/commercial/components/SupplierContactBlock.vue
+++ b/frontend/modules/commercial/components/SupplierContactBlock.vue
@@ -70,6 +70,7 @@
 
 <script setup lang="ts">
 import type { SupplierContactFormDraft } from '~/modules/commercial/types/supplierForm'
+import { sanitizeEmail, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 
 // Masque telephone FR : 5 groupes de 2 chiffres (la normalisation finale reste serveur).
 const PHONE_MASK = '## ## ## ## ##'
@@ -97,9 +98,22 @@ const { t } = useI18n()
 // Alias local pour la lisibilite du template.
 const model = computed(() => props.modelValue)
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : on retire les caracteres parasites a la
+// frappe. Noms = profil personne, fonction = texte libre, email = profil email.
+const FIELD_SANITIZERS: Partial<Record<keyof SupplierContactFormDraft, (v: string) => string>> = {
+    lastName: sanitizePersonName,
+    firstName: sanitizePersonName,
+    jobTitle: sanitizeFreeText,
+    email: sanitizeEmail,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof SupplierContactFormDraft>(field: K, value: SupplierContactFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as SupplierContactFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Revele le 2e numero (max 1 secondaire, le « + » disparait). */
diff --git a/frontend/modules/commercial/pages/clients/[id]/edit.vue b/frontend/modules/commercial/pages/clients/[id]/edit.vue
index 74f27c5..e82acaa 100644
--- a/frontend/modules/commercial/pages/clients/[id]/edit.vue
+++ b/frontend/modules/commercial/pages/clients/[id]/edit.vue
@@ -24,7 +24,8 @@
                  `manage` (ex. Compta). -->
             <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
                 <MalioInputText
-                    v-model="main.companyName"
+                    :model-value="main.companyName"
+                    @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
                     :label="t('commercial.clients.form.main.companyName')"
                     :required="true"
                     :readonly="businessReadonly"
@@ -105,7 +106,8 @@
                             :error="informationErrors.errors.description"
                         />
                         <MalioInputText
-                            v-model="information.competitors"
+                            :model-value="information.competitors"
+                            @update:model-value="(v: string) => information.competitors = sanitizeFreeText(v)"
                             :label="t('commercial.clients.form.information.competitors')"
                             :readonly="businessReadonly"
                             :error="informationErrors.errors.competitors"
@@ -139,7 +141,8 @@
                             @update:model-value="onRevenueAmountInput"
                         />
                         <MalioInputText
-                            v-model="information.directorName"
+                            :model-value="information.directorName"
+                            @update:model-value="(v: string) => information.directorName = sanitizePersonName(v)"
                             :label="t('commercial.clients.form.information.directorName')"
                             :readonly="businessReadonly"
                             :error="informationErrors.errors.directorName"
@@ -251,7 +254,8 @@
                                     :error="accountingErrors.errors.siren"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.accountNumber"
+                                    :model-value="accounting.accountNumber"
+                                    @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                                     :label="t('commercial.clients.form.accounting.accountNumber')"
                                     :readonly="accountingReadonly"
                                     :required="true"
@@ -268,7 +272,8 @@
                                     @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.nTva"
+                                    :model-value="accounting.nTva"
+                                    @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                                     :label="t('commercial.clients.form.accounting.nTva')"
                                     :readonly="accountingReadonly"
                                     :required="true"
@@ -331,14 +336,16 @@
                                     :error="ribErrors[index]?.label"
                                 />
                                 <MalioInputText
-                                    v-model="rib.bic"
+                                    :model-value="rib.bic"
+                                    @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                                     :label="t('commercial.clients.form.accounting.ribBic')"
                                     :readonly="accountingReadonly"
                                     :required="isRibRequired"
                                     :error="ribErrors[index]?.bic"
                                 />
                                 <MalioInputText
-                                    v-model="rib.iban"
+                                    :model-value="rib.iban"
+                                    @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                                     :label="t('commercial.clients.form.accounting.ribIban')"
                                     :readonly="accountingReadonly"
                                     :required="isRibRequired"
@@ -432,6 +439,7 @@ import {
 } from '~/modules/commercial/utils/forms/clientEdit'
 import { clampRevenueAmount } from '~/modules/commercial/utils/forms/amountInput'
 import { todayIso } from '~/shared/utils/date'
+import { sanitizeCodeAlnum, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 import {
     buildClientFormTabKeys,
     isAddressValid,
diff --git a/frontend/modules/commercial/pages/clients/new.vue b/frontend/modules/commercial/pages/clients/new.vue
index 051c01e..1872de7 100644
--- a/frontend/modules/commercial/pages/clients/new.vue
+++ b/frontend/modules/commercial/pages/clients/new.vue
@@ -18,7 +18,8 @@
              automatiquement sur l'onglet Information. -->
         <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
             <MalioInputText
-                v-model="main.companyName"
+                :model-value="main.companyName"
+                @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
                 :label="t('commercial.clients.form.main.companyName')"
                 :required="true"
                 :readonly="mainLocked"
@@ -100,7 +101,8 @@
                         :error="informationErrors.errors.description"
                     />
                     <MalioInputText
-                        v-model="information.competitors"
+                        :model-value="information.competitors"
+                        @update:model-value="(v: string) => information.competitors = sanitizeFreeText(v)"
                         :label="t('commercial.clients.form.information.competitors')"
                         :readonly="isValidated('information')"
                         :error="informationErrors.errors.competitors"
@@ -134,7 +136,8 @@
                         @update:model-value="onRevenueAmountInput"
                     />
                     <MalioInputText
-                        v-model="information.directorName"
+                        :model-value="information.directorName"
+                        @update:model-value="(v: string) => information.directorName = sanitizePersonName(v)"
                         :label="t('commercial.clients.form.information.directorName')"
                         :readonly="isValidated('information')"
                         :error="informationErrors.errors.directorName"
@@ -249,7 +252,8 @@
                                 :error="accountingErrors.errors.siren"
                             />
                             <MalioInputText
-                                v-model="accounting.accountNumber"
+                                :model-value="accounting.accountNumber"
+                                @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                                 :label="t('commercial.clients.form.accounting.accountNumber')"
                                 :readonly="accountingReadonly"
                                 :required="true"
@@ -266,7 +270,8 @@
                                 @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                             />
                             <MalioInputText
-                                v-model="accounting.nTva"
+                                :model-value="accounting.nTva"
+                                @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                                 :label="t('commercial.clients.form.accounting.nTva')"
                                 :readonly="accountingReadonly"
                                 :required="true"
@@ -330,14 +335,16 @@
                                 :error="ribErrors[index]?.label"
                             />
                             <MalioInputText
-                                v-model="rib.bic"
+                                :model-value="rib.bic"
+                                @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                                 :label="t('commercial.clients.form.accounting.ribBic')"
                                 :readonly="accountingReadonly"
                                 :required="isRibRequired"
                                 :error="ribErrors[index]?.bic"
                             />
                             <MalioInputText
-                                v-model="rib.iban"
+                                :model-value="rib.iban"
+                                @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                                 :label="t('commercial.clients.form.accounting.ribIban')"
                                 :readonly="accountingReadonly"
                                 :required="isRibRequired"
@@ -416,6 +423,7 @@ import {
 } from '~/modules/commercial/utils/forms/clientFormRules'
 import { clampRevenueAmount } from '~/modules/commercial/utils/forms/amountInput'
 import { todayIso } from '~/shared/utils/date'
+import { sanitizeCodeAlnum, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 import {
     buildAddressPayload,
     buildMainPayload,
diff --git a/frontend/modules/commercial/pages/suppliers/[id]/edit.vue b/frontend/modules/commercial/pages/suppliers/[id]/edit.vue
index d549b3b..71c4589 100644
--- a/frontend/modules/commercial/pages/suppliers/[id]/edit.vue
+++ b/frontend/modules/commercial/pages/suppliers/[id]/edit.vue
@@ -23,11 +23,12 @@
                  roles sans `manage` (ex. Compta). Pas de contact inline (ERP-106). -->
             <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
                 <MalioInputText
-                    v-model="main.companyName"
+                    :model-value="main.companyName"
                     :label="t('commercial.suppliers.form.main.companyName')"
                     :required="true"
                     :readonly="businessReadonly"
                     :error="mainErrors.errors.companyName"
+                    @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
                 />
                 <MalioSelectCheckbox
                     :model-value="main.categoryIris"
@@ -66,10 +67,11 @@
                             :error="informationErrors.errors.description"
                         />
                         <MalioInputText
-                            v-model="information.competitors"
+                            :model-value="information.competitors"
                             :label="t('commercial.suppliers.form.information.competitors')"
                             :readonly="businessReadonly"
                             :error="informationErrors.errors.competitors"
+                            @update:model-value="(v: string) => information.competitors = sanitizeFreeText(v)"
                         />
                         <!-- Date de creation jamais dans le futur (ERP-193) : :max plafonne
                              le calendrier a aujourd'hui et invalide une saisie future. -->
@@ -100,10 +102,11 @@
                             @update:model-value="onRevenueAmountInput"
                         />
                         <MalioInputText
-                            v-model="information.directorName"
+                            :model-value="information.directorName"
                             :label="t('commercial.suppliers.form.information.directorName')"
                             :readonly="businessReadonly"
                             :error="informationErrors.errors.directorName"
+                            @update:model-value="(v: string) => information.directorName = sanitizePersonName(v)"
                         />
                         <MalioInputAmount
                             v-model="information.profitAmount"
@@ -220,11 +223,12 @@
                                     :error="accountingErrors.errors.siren"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.accountNumber"
+                                    :model-value="accounting.accountNumber"
                                     :label="t('commercial.suppliers.form.accounting.accountNumber')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="accountingErrors.errors.accountNumber"
+                                    @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioSelect
                                     :model-value="accounting.tvaModeIri"
@@ -237,11 +241,12 @@
                                     @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.nTva"
+                                    :model-value="accounting.nTva"
                                     :label="t('commercial.suppliers.form.accounting.nTva')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="accountingErrors.errors.nTva"
+                                    @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioSelect
                                     :model-value="accounting.paymentDelayIri"
@@ -300,18 +305,20 @@
                                     :error="ribErrors[index]?.label"
                                 />
                                 <MalioInputText
-                                    v-model="rib.bic"
+                                    :model-value="rib.bic"
                                     :label="t('commercial.suppliers.form.accounting.ribBic')"
                                     :readonly="accountingReadonly"
                                     :required="isRibRequired"
                                     :error="ribErrors[index]?.bic"
+                                    @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioInputText
-                                    v-model="rib.iban"
+                                    :model-value="rib.iban"
                                     :label="t('commercial.suppliers.form.accounting.ribIban')"
                                     :readonly="accountingReadonly"
                                     :required="isRibRequired"
                                     :error="ribErrors[index]?.iban"
+                                    @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                                 />
                             </div>
                         </div>
@@ -421,6 +428,7 @@ import {
 } from '~/modules/commercial/types/supplierForm'
 import { extractApiErrorMessage } from '~/shared/utils/api'
 import { isRowRemovable, removeCollectionRow } from '~/shared/utils/collectionRow'
+import { sanitizeCodeAlnum, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 import { readHistoryTab } from '~/shared/utils/historyTab'
 
 // Masques de saisie (la normalisation finale reste serveur).
diff --git a/frontend/modules/commercial/pages/suppliers/new.vue b/frontend/modules/commercial/pages/suppliers/new.vue
index 6e79a58..58f0fd1 100644
--- a/frontend/modules/commercial/pages/suppliers/new.vue
+++ b/frontend/modules/commercial/pages/suppliers/new.vue
@@ -18,11 +18,12 @@
              automatiquement sur l'onglet Information. Pas de contact inline (ERP-106). -->
         <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
             <MalioInputText
-                v-model="main.companyName"
+                :model-value="main.companyName"
                 :label="t('commercial.suppliers.form.main.companyName')"
                 :required="true"
                 :readonly="mainLocked"
                 :error="mainErrors.errors.companyName"
+                @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
             />
             <MalioSelectCheckbox
                 :model-value="main.categoryIris"
@@ -60,10 +61,11 @@
                         :error="informationErrors.errors.description"
                     />
                     <MalioInputText
-                        v-model="information.competitors"
+                        :model-value="information.competitors"
                         :label="t('commercial.suppliers.form.information.competitors')"
                         :readonly="isValidated('information')"
                         :error="informationErrors.errors.competitors"
+                        @update:model-value="(v: string) => information.competitors = sanitizeFreeText(v)"
                     />
                     <!-- Date de creation jamais dans le futur (ERP-193) : :max plafonne
                          le calendrier a aujourd'hui et invalide une saisie future. -->
@@ -94,10 +96,11 @@
                         @update:model-value="onRevenueAmountInput"
                     />
                     <MalioInputText
-                        v-model="information.directorName"
+                        :model-value="information.directorName"
                         :label="t('commercial.suppliers.form.information.directorName')"
                         :readonly="isValidated('information')"
                         :error="informationErrors.errors.directorName"
+                        @update:model-value="(v: string) => information.directorName = sanitizePersonName(v)"
                     />
                     <MalioInputAmount
                         v-model="information.profitAmount"
@@ -214,11 +217,12 @@
                                 :error="accountingErrors.errors.siren"
                             />
                             <MalioInputText
-                                v-model="accounting.accountNumber"
+                                :model-value="accounting.accountNumber"
                                 :label="t('commercial.suppliers.form.accounting.accountNumber')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="accountingErrors.errors.accountNumber"
+                                @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                             />
                             <MalioSelect
                                 :model-value="accounting.tvaModeIri"
@@ -231,11 +235,12 @@
                                 @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                             />
                             <MalioInputText
-                                v-model="accounting.nTva"
+                                :model-value="accounting.nTva"
                                 :label="t('commercial.suppliers.form.accounting.nTva')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="accountingErrors.errors.nTva"
+                                @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                             />
                             <MalioSelect
                                 :model-value="accounting.paymentDelayIri"
@@ -294,18 +299,20 @@
                                 :error="ribErrors[index]?.label"
                             />
                             <MalioInputText
-                                v-model="rib.bic"
+                                :model-value="rib.bic"
                                 :label="t('commercial.suppliers.form.accounting.ribBic')"
                                 :readonly="accountingReadonly"
                                 :required="isRibRequired"
                                 :error="ribErrors[index]?.bic"
+                                @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                             />
                             <MalioInputText
-                                v-model="rib.iban"
+                                :model-value="rib.iban"
                                 :label="t('commercial.suppliers.form.accounting.ribIban')"
                                 :readonly="accountingReadonly"
                                 :required="isRibRequired"
                                 :error="ribErrors[index]?.iban"
+                                @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                             />
                         </div>
                     </div>
@@ -394,6 +401,7 @@ import {
 } from '~/modules/commercial/types/supplierForm'
 import { extractApiErrorMessage } from '~/shared/utils/api'
 import { isRowRemovable } from '~/shared/utils/collectionRow'
+import { sanitizeCodeAlnum, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 
 // Masques de saisie (la normalisation finale reste serveur).
 const SIREN_MASK = '#########'
diff --git a/frontend/modules/technique/components/ProviderAddressBlock.vue b/frontend/modules/technique/components/ProviderAddressBlock.vue
index 3d37def..1facd17 100644
--- a/frontend/modules/technique/components/ProviderAddressBlock.vue
+++ b/frontend/modules/technique/components/ProviderAddressBlock.vue
@@ -131,6 +131,7 @@
 import { useAddressAutocomplete, type AddressSuggestion } from '~/shared/composables/useAddressAutocomplete'
 import type { RefOption } from '~/modules/technique/composables/useProviderReferentials'
 import type { ProviderAddressFormDraft } from '~/modules/technique/types/providerForm'
+import { sanitizeAddress } from '~/shared/utils/textSanitize'
 
 // Masque code postal FR : 5 chiffres.
 const POSTAL_CODE_MASK = '#####'
@@ -193,9 +194,20 @@ const addressLoading = ref(false)
 // Conserve les suggestions d'adresse pour retrouver ville/CP au moment du select.
 let lastAddressSuggestions: AddressSuggestion[] = []
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : voie / complement / ville = profil adresse.
+const FIELD_SANITIZERS: Partial<Record<keyof ProviderAddressFormDraft, (v: string) => string>> = {
+    street: sanitizeAddress,
+    streetComplement: sanitizeAddress,
+    city: sanitizeAddress,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof ProviderAddressFormDraft>(field: K, value: ProviderAddressFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as ProviderAddressFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Previent le parent (toast unique) que l'autocompletion est indisponible. */
diff --git a/frontend/modules/technique/components/ProviderContactBlock.vue b/frontend/modules/technique/components/ProviderContactBlock.vue
index 0db2702..d961b7e 100644
--- a/frontend/modules/technique/components/ProviderContactBlock.vue
+++ b/frontend/modules/technique/components/ProviderContactBlock.vue
@@ -71,6 +71,7 @@
 
 <script setup lang="ts">
 import type { ProviderContactFormDraft } from '~/modules/technique/types/providerForm'
+import { sanitizeEmail, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 
 // Masque telephone FR : 5 groupes de 2 chiffres (la normalisation finale reste serveur).
 const PHONE_MASK = '## ## ## ## ##'
@@ -96,9 +97,22 @@ const { t } = useI18n()
 // Alias local pour la lisibilite du template.
 const model = computed(() => props.modelValue)
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : on retire les caracteres parasites a la
+// frappe. Noms = profil personne, fonction = texte libre, email = profil email.
+const FIELD_SANITIZERS: Partial<Record<keyof ProviderContactFormDraft, (v: string) => string>> = {
+    lastName: sanitizePersonName,
+    firstName: sanitizePersonName,
+    jobTitle: sanitizeFreeText,
+    email: sanitizeEmail,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof ProviderContactFormDraft>(field: K, value: ProviderContactFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as ProviderContactFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Revele le 2e numero (max 1 secondaire, le « + » disparait). */
diff --git a/frontend/modules/technique/pages/providers/[id]/edit.vue b/frontend/modules/technique/pages/providers/[id]/edit.vue
index 873b11e..a14c6bf 100644
--- a/frontend/modules/technique/pages/providers/[id]/edit.vue
+++ b/frontend/modules/technique/pages/providers/[id]/edit.vue
@@ -20,11 +20,12 @@
             <!-- ── Bloc principal (pre-rempli, editable si `manage`) ──────────── -->
             <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
                 <MalioInputText
-                    v-model="main.companyName"
+                    :model-value="main.companyName"
                     :label="t('technique.providers.form.main.companyName')"
                     :required="true"
                     :readonly="businessReadonly"
                     :error="mainErrors.errors.companyName"
+                    @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
                 />
                 <MalioSelectCheckbox
                     :model-value="main.categoryIris"
@@ -146,11 +147,12 @@
                                     :error="accountingErrors.errors.siren"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.accountNumber"
+                                    :model-value="accounting.accountNumber"
                                     :label="t('technique.providers.form.accounting.accountNumber')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="accountingErrors.errors.accountNumber"
+                                    @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioSelect
                                     :model-value="accounting.tvaModeIri"
@@ -163,11 +165,12 @@
                                     @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                                 />
                                 <MalioInputText
-                                    v-model="accounting.nTva"
+                                    :model-value="accounting.nTva"
                                     :label="t('technique.providers.form.accounting.nTva')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="accountingErrors.errors.nTva"
+                                    @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioSelect
                                     :model-value="accounting.paymentDelayIri"
@@ -226,18 +229,20 @@
                                     :error="ribErrors[index]?.label"
                                 />
                                 <MalioInputText
-                                    v-model="rib.bic"
+                                    :model-value="rib.bic"
                                     :label="t('technique.providers.form.accounting.ribBic')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="ribErrors[index]?.bic"
+                                    @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                                 />
                                 <MalioInputText
-                                    v-model="rib.iban"
+                                    :model-value="rib.iban"
                                     :label="t('technique.providers.form.accounting.ribIban')"
                                     :readonly="accountingReadonly"
                                     :required="true"
                                     :error="ribErrors[index]?.iban"
+                                    @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                                 />
                             </div>
                         </div>
@@ -313,6 +318,7 @@ import {
 } from '~/modules/technique/types/providerForm'
 import { extractApiErrorMessage } from '~/shared/utils/api'
 import { isRowRemovable } from '~/shared/utils/collectionRow'
+import { sanitizeCodeAlnum, sanitizeFreeText } from '~/shared/utils/textSanitize'
 
 // Masque SIREN : 9 chiffres (la normalisation finale reste serveur).
 const SIREN_MASK = '#########'
diff --git a/frontend/modules/technique/pages/providers/new.vue b/frontend/modules/technique/pages/providers/new.vue
index d8afc00..13fbef1 100644
--- a/frontend/modules/technique/pages/providers/new.vue
+++ b/frontend/modules/technique/pages/providers/new.vue
@@ -19,11 +19,12 @@
              Selecteur de site present ici (RG-3.03, relation directe). -->
         <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
             <MalioInputText
-                v-model="main.companyName"
+                :model-value="main.companyName"
                 :label="t('technique.providers.form.main.companyName')"
                 :required="true"
                 :readonly="mainLocked"
                 :error="mainErrors.errors.companyName"
+                @update:model-value="(v: string) => main.companyName = sanitizeFreeText(v)"
             />
             <MalioSelectCheckbox
                 :model-value="main.categoryIris"
@@ -145,11 +146,12 @@
                                 :error="accountingErrors.errors.siren"
                             />
                             <MalioInputText
-                                v-model="accounting.accountNumber"
+                                :model-value="accounting.accountNumber"
                                 :label="t('technique.providers.form.accounting.accountNumber')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="accountingErrors.errors.accountNumber"
+                                @update:model-value="(v: string) => accounting.accountNumber = sanitizeCodeAlnum(v)"
                             />
                             <MalioSelect
                                 :model-value="accounting.tvaModeIri"
@@ -162,11 +164,12 @@
                                 @update:model-value="(v: string | number | null) => accounting.tvaModeIri = v === null ? null : String(v)"
                             />
                             <MalioInputText
-                                v-model="accounting.nTva"
+                                :model-value="accounting.nTva"
                                 :label="t('technique.providers.form.accounting.nTva')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="accountingErrors.errors.nTva"
+                                @update:model-value="(v: string) => accounting.nTva = sanitizeCodeAlnum(v)"
                             />
                             <MalioSelect
                                 :model-value="accounting.paymentDelayIri"
@@ -226,18 +229,20 @@
                                 :error="ribErrors[index]?.label"
                             />
                             <MalioInputText
-                                v-model="rib.bic"
+                                :model-value="rib.bic"
                                 :label="t('technique.providers.form.accounting.ribBic')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="ribErrors[index]?.bic"
+                                @update:model-value="(v: string) => rib.bic = sanitizeCodeAlnum(v)"
                             />
                             <MalioInputText
-                                v-model="rib.iban"
+                                :model-value="rib.iban"
                                 :label="t('technique.providers.form.accounting.ribIban')"
                                 :readonly="accountingReadonly"
                                 :required="true"
                                 :error="ribErrors[index]?.iban"
+                                @update:model-value="(v: string) => rib.iban = sanitizeCodeAlnum(v)"
                             />
                         </div>
                     </div>
@@ -297,6 +302,7 @@ import {
 } from '~/modules/technique/utils/forms/providerAccounting'
 import { extractApiErrorMessage } from '~/shared/utils/api'
 import { isRowRemovable } from '~/shared/utils/collectionRow'
+import { sanitizeCodeAlnum, sanitizeFreeText } from '~/shared/utils/textSanitize'
 
 // Masque SIREN : 9 chiffres (la normalisation finale reste serveur).
 const SIREN_MASK = '#########'
diff --git a/frontend/modules/transport/components/CarrierAddressBlock.vue b/frontend/modules/transport/components/CarrierAddressBlock.vue
index 363baaa..b71ff78 100644
--- a/frontend/modules/transport/components/CarrierAddressBlock.vue
+++ b/frontend/modules/transport/components/CarrierAddressBlock.vue
@@ -91,6 +91,7 @@
 <script setup lang="ts">
 import { useAddressAutocomplete, type AddressSuggestion } from '~/shared/composables/useAddressAutocomplete'
 import type { CarrierAddressFormDraft } from '~/modules/transport/types/carrierForm'
+import { sanitizeAddress } from '~/shared/utils/textSanitize'
 
 interface RefOption {
     value: string
@@ -150,9 +151,21 @@ const addressLoading = ref(false)
 // Conserve les suggestions d'adresse pour retrouver ville/CP au moment du select.
 let lastAddressSuggestions: AddressSuggestion[] = []
 
-/** Emet un nouveau brouillon avec le champ modifie (immutabilite). */
+// Filtres de saisie par champ (ERP-193) : voie / complement / ville = profil
+// adresse. Le code postal (masque numerique) n'est pas filtre ici.
+const FIELD_SANITIZERS: Partial<Record<keyof CarrierAddressFormDraft, (v: string) => string>> = {
+    street: sanitizeAddress,
+    streetComplement: sanitizeAddress,
+    city: sanitizeAddress,
+}
+
+/** Emet un nouveau brouillon avec le champ modifie (immutabilite), sanitise si besoin. */
 function update<K extends keyof CarrierAddressFormDraft>(field: K, value: CarrierAddressFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as CarrierAddressFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Previent le parent (toast unique) que l'autocompletion est indisponible. */
diff --git a/frontend/modules/transport/components/CarrierContactBlock.vue b/frontend/modules/transport/components/CarrierContactBlock.vue
index 20e0d2c..73c3fd9 100644
--- a/frontend/modules/transport/components/CarrierContactBlock.vue
+++ b/frontend/modules/transport/components/CarrierContactBlock.vue
@@ -71,6 +71,7 @@
 
 <script setup lang="ts">
 import type { CarrierContactFormDraft } from '~/modules/transport/types/carrierForm'
+import { sanitizeEmail, sanitizeFreeText, sanitizePersonName } from '~/shared/utils/textSanitize'
 
 // Masque téléphone FR : 5 groupes de 2 chiffres (la normalisation finale reste serveur).
 const PHONE_MASK = '## ## ## ## ##'
@@ -96,9 +97,22 @@ const { t } = useI18n()
 // Alias local pour la lisibilité du template.
 const model = computed(() => props.modelValue)
 
-/** Émet un nouveau brouillon avec le champ modifié (immutabilité). */
+// Filtres de saisie par champ (ERP-193) : on retire les caractères parasites à la
+// frappe. Noms = profil personne, fonction = texte libre, email = profil email.
+const FIELD_SANITIZERS: Partial<Record<keyof CarrierContactFormDraft, (v: string) => string>> = {
+    lastName: sanitizePersonName,
+    firstName: sanitizePersonName,
+    jobTitle: sanitizeFreeText,
+    email: sanitizeEmail,
+}
+
+/** Émet un nouveau brouillon avec le champ modifié (immutabilité), sanitisé si besoin. */
 function update<K extends keyof CarrierContactFormDraft>(field: K, value: CarrierContactFormDraft[K]): void {
-    emit('update:modelValue', { ...props.modelValue, [field]: value })
+    const sanitizer = FIELD_SANITIZERS[field]
+    const next = (sanitizer && typeof value === 'string')
+        ? (sanitizer(value) as CarrierContactFormDraft[K])
+        : value
+    emit('update:modelValue', { ...props.modelValue, [field]: next })
 }
 
 /** Révèle le 2e numéro (max 1 secondaire, le « + » disparaît). */
diff --git a/frontend/modules/transport/pages/carriers/[id]/edit.vue b/frontend/modules/transport/pages/carriers/[id]/edit.vue
index 17fc3cf..81bb13a 100644
--- a/frontend/modules/transport/pages/carriers/[id]/edit.vue
+++ b/frontend/modules/transport/pages/carriers/[id]/edit.vue
@@ -19,7 +19,8 @@
             <!-- ── Formulaire principal (éditable, PATCH partiel) ─────────────── -->
             <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
                 <MalioInputText
-                    v-model="main.name"
+                    :model-value="main.name"
+                    @update:model-value="(v: string) => main.name = sanitizeFreeText(v)"
                     :label="t('transport.carriers.form.main.name')"
                     :required="true"
                     :error="mainErrors.errors.name"
@@ -214,6 +215,7 @@ import { useCarrierForm } from '~/modules/transport/composables/useCarrierForm'
 import { useCarrier } from '~/modules/transport/composables/useCarrier'
 import type { QualimatCarrierRow } from '~/modules/transport/composables/useQualimatSearch'
 import { clampPercent, sanitizeDecimal } from '~/modules/transport/utils/forms/numberInput'
+import { sanitizeFreeText } from '~/shared/utils/textSanitize'
 
 interface SelectOption {
     value: string
diff --git a/frontend/modules/transport/pages/carriers/new.vue b/frontend/modules/transport/pages/carriers/new.vue
index 2ec14a5..73a7815 100644
--- a/frontend/modules/transport/pages/carriers/new.vue
+++ b/frontend/modules/transport/pages/carriers/new.vue
@@ -19,7 +19,8 @@
              seule pour un transporteur QUALIMAT (saisie assistee, onglet Qualimat). -->
         <div class="mt-[48px] grid grid-cols-3 xl:grid-cols-4 gap-x-[44px] gap-y-4">
             <MalioInputText
-                v-model="main.name"
+                :model-value="main.name"
+                @update:model-value="(v: string) => main.name = sanitizeFreeText(v)"
                 :label="t('transport.carriers.form.main.name')"
                 :required="true"
                 :readonly="mainLocked"
@@ -112,7 +113,7 @@
                                 name="carrier-main-container"
                                 value="BENNE"
                                 :label="t('transport.carriers.containerType.BENNE')"
-                                :disabled="mainLocked"
+                                :readonly="mainLocked"
                                 group-class="mt-0"
                                 @update:model-value="(v: string | number | boolean | null) => main.containerType = v === null ? null : String(v)"
                             />
@@ -121,7 +122,7 @@
                                 name="carrier-main-container"
                                 value="FOND_MOUVANT"
                                 :label="t('transport.carriers.containerType.FOND_MOUVANT')"
-                                :disabled="mainLocked"
+                                :readonly="mainLocked"
                                 group-class="mt-0"
                                 @update:model-value="(v: string | number | boolean | null) => main.containerType = v === null ? null : String(v)"
                             />
@@ -308,6 +309,7 @@ import CarrierQualimatTab from '~/modules/transport/components/CarrierQualimatTa
 import { useCarrierForm } from '~/modules/transport/composables/useCarrierForm'
 import type { QualimatCarrierRow } from '~/modules/transport/composables/useQualimatSearch'
 import { clampPercent, sanitizeDecimal } from '~/modules/transport/utils/forms/numberInput'
+import { sanitizeFreeText } from '~/shared/utils/textSanitize'
 
 interface SelectOption {
     value: string
diff --git a/frontend/shared/utils/__tests__/textSanitize.test.ts b/frontend/shared/utils/__tests__/textSanitize.test.ts
new file mode 100644
index 0000000..e992b4c
--- /dev/null
+++ b/frontend/shared/utils/__tests__/textSanitize.test.ts
@@ -0,0 +1,70 @@
+import { describe, expect, it } from 'vitest'
+import {
+    sanitizeAddress,
+    sanitizeCodeAlnum,
+    sanitizeEmail,
+    sanitizeFreeText,
+    sanitizePersonName,
+} from '../textSanitize'
+
+describe('sanitizePersonName', () => {
+    it('garde lettres accentuees, espace, apostrophe, tiret, point', () => {
+        expect(sanitizePersonName('Jean-Pierre')).toBe('Jean-Pierre')
+        expect(sanitizePersonName('O’Brien')).toBe('O’Brien')
+        expect(sanitizePersonName("D'Angelo")).toBe("D'Angelo")
+        expect(sanitizePersonName('Saint-Étienne J.')).toBe('Saint-Étienne J.')
+    })
+
+    it('retire chiffres et caracteres parasites', () => {
+        expect(sanitizePersonName('Dupont²³')).toBe('Dupont')
+        expect(sanitizePersonName('Jean§&#~|')).toBe('Jean')
+        expect(sanitizePersonName('Marie123')).toBe('Marie')
+    })
+})
+
+describe('sanitizeFreeText', () => {
+    it('garde &, /, parentheses, degre, chiffres (raison sociale / fonction)', () => {
+        expect(sanitizeFreeText('Dupont & Fils')).toBe('Dupont & Fils')
+        expect(sanitizeFreeText('Resp. Achats/Ventes')).toBe('Resp. Achats/Ventes')
+        expect(sanitizeFreeText('SARL Léon (Pôle n°2)')).toBe('SARL Léon (Pôle n°2)')
+    })
+
+    it('retire les parasites ²³§~#|', () => {
+        expect(sanitizeFreeText('ACME²³§')).toBe('ACME')
+        expect(sanitizeFreeText('Test~#|<>{}')).toBe('Test')
+    })
+})
+
+describe('sanitizeAddress', () => {
+    it('garde chiffres, virgule, point, apostrophe, slash, degre, tiret', () => {
+        expect(sanitizeAddress('12 bis, rue de l’Église')).toBe('12 bis, rue de l’Église')
+        expect(sanitizeAddress('Bât. n°3 - Zone A/B')).toBe('Bât. n°3 - Zone A/B')
+    })
+
+    it('retire les parasites', () => {
+        expect(sanitizeAddress('5 rue X²³§&')).toBe('5 rue X')
+    })
+})
+
+describe('sanitizeEmail', () => {
+    it('garde les caracteres email valides', () => {
+        expect(sanitizeEmail('jean.dupont+pro@acme-corp.fr')).toBe('jean.dupont+pro@acme-corp.fr')
+    })
+
+    it('retire espaces et parasites', () => {
+        expect(sanitizeEmail('jean §² dupont@acme.fr')).toBe('jeandupont@acme.fr')
+        expect(sanitizeEmail('a&b#c@x.fr')).toBe('abc@x.fr')
+    })
+})
+
+describe('sanitizeCodeAlnum', () => {
+    it('force la majuscule et ne garde que A-Z 0-9', () => {
+        expect(sanitizeCodeAlnum('411dupont')).toBe('411DUPONT')
+        expect(sanitizeCodeAlnum('FR 12 345')).toBe('FR12345')
+        expect(sanitizeCodeAlnum('4-11.000§')).toBe('411000')
+    })
+
+    it('chaine vide reste vide', () => {
+        expect(sanitizeCodeAlnum('')).toBe('')
+    })
+})
diff --git a/frontend/shared/utils/textSanitize.ts b/frontend/shared/utils/textSanitize.ts
new file mode 100644
index 0000000..a225302
--- /dev/null
+++ b/frontend/shared/utils/textSanitize.ts
@@ -0,0 +1,58 @@
+/**
+ * Filtres de saisie texte (retour metier ERP-193) : on retire a la frappe / au
+ * collage les caracteres parasites (« ²³§~#| … ») des champs texte libres.
+ *
+ * Miroir FRONT des patterns back `App\Shared\Domain\Validation\TextInputPattern`
+ * (allow-list par famille de champ). Le back reste l'autorite (Assert\Regex →
+ * 422 inline via useFormErrors) ; ces fonctions ne font que le confort de saisie.
+ * Purs / testables.
+ *
+ * IMPORTANT : garder les classes de caracteres STRICTEMENT alignees sur le back
+ * (toute divergence = soit un caractere bloque au front mais accepte au back, soit
+ * l'inverse → 422 surprise).
+ */
+
+/**
+ * Noms de personnes (Nom, Prenom, Dirigeant) : lettres (accents), espace,
+ * apostrophe droite/courbe, tiret, point.
+ */
+export function sanitizePersonName(value: string): string {
+    return value.replace(/[^\p{L}\p{M} '’.-]/gu, '')
+}
+
+/**
+ * Texte societe / libre (Raison sociale, Concurrents, Fonction) : nom + chiffres,
+ * virgule, esperluette, slash, parentheses, degre.
+ */
+export function sanitizeFreeText(value: string): string {
+    // 0-9 (et pas \p{N}) : \p{N} engloberait les exposants ² ³ — justement parasites.
+    return value.replace(/[^\p{L}\p{M}0-9 '’.,&/()°-]/gu, '')
+}
+
+/**
+ * Adresse (voie, complement, ville) : lettres, chiffres, espace, apostrophe,
+ * point, virgule, slash, degre, tiret.
+ */
+export function sanitizeAddress(value: string): string {
+    // 0-9 (et pas \p{N}) : evite de laisser passer les exposants ² ³.
+    return value.replace(/[^\p{L}\p{M}0-9 '’.,/°-]/gu, '')
+}
+
+/**
+ * Codes alphanumeriques majuscules (N° de compte comptable, N° de TVA, IBAN, BIC) :
+ * uniquement A-Z et 0-9, majuscule forcee.
+ */
+export function sanitizeCodeAlnum(value: string): string {
+    return value.toUpperCase().replace(/[^A-Z0-9]/g, '')
+}
+
+/**
+ * Email : retire espaces et caracteres impossibles dans une adresse, en gardant
+ * le jeu de caracteres email valides (lettres, chiffres, @ . _ % + - '). La
+ * validation de FORMAT reste au back (Assert\Email) ; ici on bloque juste les
+ * parasites (« ²³§~#| … ») a la frappe. La normalisation lowercase est portee par
+ * MalioInputEmail (prop `lowercase`), on ne la duplique pas.
+ */
+export function sanitizeEmail(value: string): string {
+    return value.replace(/[^A-Za-z0-9@._%+'-]/g, '')
+}
diff --git a/src/Module/Commercial/Domain/Entity/Client.php b/src/Module/Commercial/Domain/Entity/Client.php
index 7386830..09e1ea6 100644
--- a/src/Module/Commercial/Domain/Entity/Client.php
+++ b/src/Module/Commercial/Domain/Entity/Client.php
@@ -19,6 +19,7 @@ use App\Shared\Domain\Contract\ClientInterface;
 use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use DateTimeImmutable;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
@@ -162,6 +163,7 @@ class Client implements TimestampableInterface, BlamableInterface, ClientInterfa
     #[ORM\Column(length: 180)]
     #[Assert\NotBlank(message: 'Le nom de l\'entreprise est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(min: 2, max: 180, minMessage: 'Le nom de l\'entreprise doit comporter au moins {{ limit }} caractères.', maxMessage: 'Le nom de l\'entreprise ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['client:read', 'client:write:main'])]
     private ?string $companyName = null;
 
@@ -214,6 +216,7 @@ class Client implements TimestampableInterface, BlamableInterface, ClientInterfa
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'La liste des concurrents ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['client:read', 'client:write:information'])]
     private ?string $competitors = null;
 
@@ -244,6 +247,7 @@ class Client implements TimestampableInterface, BlamableInterface, ClientInterfa
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom du dirigeant ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['client:read', 'client:write:information'])]
     private ?string $directorName = null;
 
@@ -262,6 +266,7 @@ class Client implements TimestampableInterface, BlamableInterface, ClientInterfa
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de compte ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['client:read:accounting', 'client:write:accounting'])]
     private ?string $accountNumber = null;
 
@@ -272,6 +277,7 @@ class Client implements TimestampableInterface, BlamableInterface, ClientInterfa
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de TVA ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['client:read:accounting', 'client:write:accounting'])]
     private ?string $nTva = null;
 
diff --git a/src/Module/Commercial/Domain/Entity/ClientAddress.php b/src/Module/Commercial/Domain/Entity/ClientAddress.php
index c5d9802..6e35abd 100644
--- a/src/Module/Commercial/Domain/Entity/ClientAddress.php
+++ b/src/Module/Commercial/Domain/Entity/ClientAddress.php
@@ -19,6 +19,7 @@ use App\Shared\Domain\Contract\ClientAddressInterface;
 use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -158,17 +159,20 @@ class ClientAddress implements TimestampableInterface, BlamableInterface, Client
     #[ORM\Column(length: 120)]
     #[Assert\NotBlank(message: 'La ville est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 120, maxMessage: 'La ville ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['client_address:read', 'client_address:write'])]
     private ?string $city = null;
 
     #[ORM\Column(length: 255)]
     #[Assert\NotBlank(message: 'La rue est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 255, maxMessage: 'La rue ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['client_address:read', 'client_address:write'])]
     private ?string $street = null;
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'Le complément d\'adresse ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['client_address:read', 'client_address:write'])]
     private ?string $streetComplement = null;
 
diff --git a/src/Module/Commercial/Domain/Entity/ClientContact.php b/src/Module/Commercial/Domain/Entity/ClientContact.php
index 80247c8..b0b27a1 100644
--- a/src/Module/Commercial/Domain/Entity/ClientContact.php
+++ b/src/Module/Commercial/Domain/Entity/ClientContact.php
@@ -16,6 +16,7 @@ use App\Shared\Domain\Attribute\Auditable;
 use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -94,16 +95,19 @@ class ClientContact implements TimestampableInterface, BlamableInterface
     // deux restent nullable au niveau ORM.
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le prénom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['client_contact:read', 'client_contact:write'])]
     private ?string $firstName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['client_contact:read', 'client_contact:write'])]
     private ?string $lastName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'La fonction ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['client_contact:read', 'client_contact:write'])]
     private ?string $jobTitle = null;
 
diff --git a/src/Module/Commercial/Domain/Entity/Supplier.php b/src/Module/Commercial/Domain/Entity/Supplier.php
index 78b0500..b32827c 100644
--- a/src/Module/Commercial/Domain/Entity/Supplier.php
+++ b/src/Module/Commercial/Domain/Entity/Supplier.php
@@ -19,6 +19,7 @@ use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\SupplierInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use DateTimeImmutable;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
@@ -171,6 +172,7 @@ class Supplier implements TimestampableInterface, BlamableInterface, SupplierInt
     #[ORM\Column(length: 180)]
     #[Assert\NotBlank(message: 'Le nom du fournisseur est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(min: 2, max: 180, minMessage: 'Le nom du fournisseur doit comporter au moins {{ limit }} caractères.', maxMessage: 'Le nom du fournisseur ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['supplier:read', 'supplier:write:main'])]
     private ?string $companyName = null;
 
@@ -195,6 +197,7 @@ class Supplier implements TimestampableInterface, BlamableInterface, SupplierInt
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'La liste des concurrents ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['supplier:read', 'supplier:write:information'])]
     private ?string $competitors = null;
 
@@ -223,6 +226,7 @@ class Supplier implements TimestampableInterface, BlamableInterface, SupplierInt
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom du dirigeant ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['supplier:read', 'supplier:write:information'])]
     private ?string $directorName = null;
 
@@ -248,6 +252,7 @@ class Supplier implements TimestampableInterface, BlamableInterface, SupplierInt
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de compte ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['supplier:read:accounting', 'supplier:write:accounting'])]
     private ?string $accountNumber = null;
 
@@ -258,6 +263,7 @@ class Supplier implements TimestampableInterface, BlamableInterface, SupplierInt
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de TVA ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['supplier:read:accounting', 'supplier:write:accounting'])]
     private ?string $nTva = null;
 
diff --git a/src/Module/Commercial/Domain/Entity/SupplierAddress.php b/src/Module/Commercial/Domain/Entity/SupplierAddress.php
index d19efde..45984dd 100644
--- a/src/Module/Commercial/Domain/Entity/SupplierAddress.php
+++ b/src/Module/Commercial/Domain/Entity/SupplierAddress.php
@@ -19,6 +19,7 @@ use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\SupplierAddressInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -154,17 +155,20 @@ class SupplierAddress implements TimestampableInterface, BlamableInterface, Supp
     #[ORM\Column(length: 120)]
     #[Assert\NotBlank(message: 'La ville est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 120, maxMessage: 'La ville ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:addresses', 'supplier_address:read'])]
     private ?string $city = null;
 
     #[ORM\Column(length: 255)]
     #[Assert\NotBlank(message: 'La rue est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 255, maxMessage: 'La rue ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:addresses', 'supplier_address:read'])]
     private ?string $street = null;
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'Le complément d\'adresse ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:addresses', 'supplier_address:read'])]
     private ?string $streetComplement = null;
 
diff --git a/src/Module/Commercial/Domain/Entity/SupplierContact.php b/src/Module/Commercial/Domain/Entity/SupplierContact.php
index de48188..f19aebe 100644
--- a/src/Module/Commercial/Domain/Entity/SupplierContact.php
+++ b/src/Module/Commercial/Domain/Entity/SupplierContact.php
@@ -16,6 +16,7 @@ use App\Shared\Domain\Attribute\Auditable;
 use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -99,16 +100,19 @@ class SupplierContact implements TimestampableInterface, BlamableInterface
     // deux restent nullable au niveau ORM.
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le prénom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:contacts'])]
     private ?string $firstName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:contacts'])]
     private ?string $lastName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'La fonction ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['supplier:item:read', 'supplier:write:contacts'])]
     private ?string $jobTitle = null;
 
diff --git a/src/Module/Technique/Domain/Entity/Provider.php b/src/Module/Technique/Domain/Entity/Provider.php
index 8c95e8a..1f0290c 100644
--- a/src/Module/Technique/Domain/Entity/Provider.php
+++ b/src/Module/Technique/Domain/Entity/Provider.php
@@ -22,6 +22,7 @@ use App\Shared\Domain\Contract\CategoryInterface;
 use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use DateTimeImmutable;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
@@ -156,6 +157,7 @@ class Provider implements TimestampableInterface, BlamableInterface
     #[ORM\Column(length: 180)]
     #[Assert\NotBlank(message: 'Le nom du prestataire est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(min: 2, max: 180, minMessage: 'Le nom du prestataire doit comporter au moins {{ limit }} caractères.', maxMessage: 'Le nom du prestataire ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['provider:read', 'provider:write:main'])]
     private ?string $companyName = null;
 
@@ -200,6 +202,7 @@ class Provider implements TimestampableInterface, BlamableInterface
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de compte ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['provider:read:accounting', 'provider:write:accounting'])]
     private ?string $accountNumber = null;
 
@@ -210,6 +213,7 @@ class Provider implements TimestampableInterface, BlamableInterface
 
     #[ORM\Column(length: 40, nullable: true)]
     #[Assert\Length(max: 40, maxMessage: 'Le numéro de TVA ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::CODE_ALNUM, message: TextInputPattern::CODE_ALNUM_MESSAGE)]
     #[Groups(['provider:read:accounting', 'provider:write:accounting'])]
     private ?string $nTva = null;
 
diff --git a/src/Module/Technique/Domain/Entity/ProviderAddress.php b/src/Module/Technique/Domain/Entity/ProviderAddress.php
index 55ef080..dc89acb 100644
--- a/src/Module/Technique/Domain/Entity/ProviderAddress.php
+++ b/src/Module/Technique/Domain/Entity/ProviderAddress.php
@@ -18,6 +18,7 @@ use App\Shared\Domain\Contract\CategoryInterface;
 use App\Shared\Domain\Contract\SiteInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -135,17 +136,20 @@ class ProviderAddress implements TimestampableInterface, BlamableInterface, Prov
     #[ORM\Column(length: 120)]
     #[Assert\NotBlank(message: 'La ville est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 120, maxMessage: 'La ville ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:addresses'])]
     private ?string $city = null;
 
     #[ORM\Column(length: 255)]
     #[Assert\NotBlank(message: 'La rue est obligatoire.', normalizer: 'trim')]
     #[Assert\Length(max: 255, maxMessage: 'La rue ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:addresses'])]
     private ?string $street = null;
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'Le complément d\'adresse ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:addresses'])]
     private ?string $streetComplement = null;
 
diff --git a/src/Module/Technique/Domain/Entity/ProviderContact.php b/src/Module/Technique/Domain/Entity/ProviderContact.php
index 9511f6b..13e1640 100644
--- a/src/Module/Technique/Domain/Entity/ProviderContact.php
+++ b/src/Module/Technique/Domain/Entity/ProviderContact.php
@@ -16,6 +16,7 @@ use App\Shared\Domain\Attribute\Auditable;
 use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -102,16 +103,19 @@ class ProviderContact implements TimestampableInterface, BlamableInterface, Prov
     // champs restent nullable au niveau ORM.
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le prénom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:contacts'])]
     private ?string $firstName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:contacts'])]
     private ?string $lastName = null;
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'La fonction ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['provider:item:read', 'provider:write:contacts'])]
     private ?string $jobTitle = null;
 
diff --git a/src/Module/Transport/Domain/Entity/Carrier.php b/src/Module/Transport/Domain/Entity/Carrier.php
index ef82924..bcdf1b0 100644
--- a/src/Module/Transport/Domain/Entity/Carrier.php
+++ b/src/Module/Transport/Domain/Entity/Carrier.php
@@ -17,6 +17,7 @@ use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Entity\UploadedDocument;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use DateTimeImmutable;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
@@ -145,6 +146,7 @@ class Carrier implements TimestampableInterface, BlamableInterface
         maxMessage: 'Le nom du transporteur ne peut dépasser {{ limit }} caractères.',
         normalizer: 'trim',
     )]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['carrier:read', 'carrier:write:main'])]
     private ?string $name = null;
 
diff --git a/src/Module/Transport/Domain/Entity/CarrierAddress.php b/src/Module/Transport/Domain/Entity/CarrierAddress.php
index 0dd52ed..91c85ae 100644
--- a/src/Module/Transport/Domain/Entity/CarrierAddress.php
+++ b/src/Module/Transport/Domain/Entity/CarrierAddress.php
@@ -15,6 +15,7 @@ use App\Shared\Domain\Attribute\Auditable;
 use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -123,16 +124,19 @@ class CarrierAddress implements TimestampableInterface, BlamableInterface
 
     #[ORM\Column(length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'La ville ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:addresses'])]
     private ?string $city = null;
 
     #[ORM\Column(length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'L\'adresse ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:addresses'])]
     private ?string $street = null;
 
     #[ORM\Column(name: 'street_complement', length: 255, nullable: true)]
     #[Assert\Length(max: 255, maxMessage: 'Le complément d\'adresse ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::ADDRESS, message: TextInputPattern::ADDRESS_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:addresses'])]
     private ?string $streetComplement = null;
 
diff --git a/src/Module/Transport/Domain/Entity/CarrierContact.php b/src/Module/Transport/Domain/Entity/CarrierContact.php
index ddb7924..ef33056 100644
--- a/src/Module/Transport/Domain/Entity/CarrierContact.php
+++ b/src/Module/Transport/Domain/Entity/CarrierContact.php
@@ -15,6 +15,7 @@ use App\Shared\Domain\Attribute\Auditable;
 use App\Shared\Domain\Contract\BlamableInterface;
 use App\Shared\Domain\Contract\TimestampableInterface;
 use App\Shared\Domain\Trait\TimestampableBlamableTrait;
+use App\Shared\Domain\Validation\TextInputPattern;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Attribute\Groups;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -102,16 +103,19 @@ class CarrierContact implements TimestampableInterface, BlamableInterface
     // Processor + CHECK BDD). Les colonnes restent nullable au niveau ORM.
     #[ORM\Column(name: 'first_name', length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le prénom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:contacts'])]
     private ?string $firstName = null;
 
     #[ORM\Column(name: 'last_name', length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'Le nom ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::PERSON_NAME, message: TextInputPattern::PERSON_NAME_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:contacts'])]
     private ?string $lastName = null;
 
     #[ORM\Column(name: 'job_title', length: 120, nullable: true)]
     #[Assert\Length(max: 120, maxMessage: 'La fonction ne peut dépasser {{ limit }} caractères.', normalizer: 'trim')]
+    #[Assert\Regex(pattern: TextInputPattern::FREE_TEXT, message: TextInputPattern::FREE_TEXT_MESSAGE)]
     #[Groups(['carrier:item:read', 'carrier:write:contacts'])]
     private ?string $jobTitle = null;
 
diff --git a/src/Shared/Domain/Validation/TextInputPattern.php b/src/Shared/Domain/Validation/TextInputPattern.php
new file mode 100644
index 0000000..fac5338
--- /dev/null
+++ b/src/Shared/Domain/Validation/TextInputPattern.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Shared\Domain\Validation;
+
+/**
+ * Profils de caracteres autorises pour les champs texte libres (retour metier
+ * ERP-193 : bloquer les caracteres parasites « ²³§~#| … » sans casser les saisies
+ * legitimes — accents, apostrophe, tiret, &, etc.).
+ *
+ * Approche allow-list (pas blacklist) : on definit ce qui est AUTORISE par famille
+ * de champ, le reste est rejete. Couche AUTORITAIRE (back) : `#[Assert\Regex]` avec
+ * ces patterns et messages FR ; le front (shared/utils/textSanitize.ts) miroite ces
+ * memes ensembles en filtrant la saisie a la frappe.
+ *
+ * Note : `Assert\Regex` laisse passer null et la chaine vide (champs nullable OK) ;
+ * seules les valeurs non vides sont controlees.
+ */
+final class TextInputPattern
+{
+    /**
+     * Noms de personnes (Nom, Prenom, Dirigeant) : lettres (accents inclus),
+     * espace, apostrophe droite/courbe, tiret, point. Ni chiffres ni symboles.
+     */
+    public const string PERSON_NAME         = '/^[\p{L}\p{M} \'’.\-]+$/u';
+    public const string PERSON_NAME_MESSAGE = 'Ce champ ne peut contenir que des lettres, espaces, apostrophes, tirets et points.';
+
+    /**
+     * Texte societe / libre (Raison sociale, Concurrents, Fonction) : comme un nom
+     * + chiffres, virgule, esperluette, slash, parentheses, degre (n°). Couvre
+     * « Dupont & Fils », « Achats/Ventes », « Pole 2 ».
+     */
+    // 0-9 (et pas \p{N}) : \p{N} engloberait les exposants ² ³ — justement parasites.
+    public const string FREE_TEXT         = '/^[\p{L}\p{M}0-9 \'’.,&\/()°\-]+$/u';
+    public const string FREE_TEXT_MESSAGE = 'Ce champ contient des caractères non autorisés.';
+
+    /**
+     * Adresse (voie, complement, ville) : lettres, chiffres, espace, apostrophe,
+     * point, virgule, slash, degre, tiret. Couvre « 12 bis, rue de l’Église ».
+     */
+    public const string ADDRESS         = '/^[\p{L}\p{M}0-9 \'’.,\/°\-]+$/u';
+    public const string ADDRESS_MESSAGE = 'Cette adresse contient des caractères non autorisés.';
+
+    /**
+     * Codes alphanumeriques majuscules (N° de compte comptable, N° de TVA) :
+     * uniquement A-Z et 0-9. Le front force la majuscule a la frappe.
+     */
+    public const string CODE_ALNUM         = '/^[A-Z0-9]+$/';
+    public const string CODE_ALNUM_MESSAGE = 'Ce champ ne doit contenir que des lettres majuscules et des chiffres.';
+}
diff --git a/tests/Module/Commercial/Api/TextInputSanitizationTest.php b/tests/Module/Commercial/Api/TextInputSanitizationTest.php
new file mode 100644
index 0000000..fbd35bf
--- /dev/null
+++ b/tests/Module/Commercial/Api/TextInputSanitizationTest.php
@@ -0,0 +1,93 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Module\Commercial\Api;
+
+/**
+ * Validation back-autoritative des caracteres autorises dans les champs texte
+ * (retour metier ERP-193) : on rejette les caracteres parasites « ²³§~#| … » via
+ * une allow-list par profil (App\Shared\Domain\Validation\TextInputPattern). Le
+ * front filtre deja a la frappe, mais le back reste l'autorite : une 422 portee
+ * sur le champ fautif (mappable inline par useFormErrors).
+ *
+ * On couvre les clients (M1) et les fournisseurs (M2) — meme socle de profils.
+ *
+ * @internal
+ */
+final class TextInputSanitizationTest extends AbstractSupplierApiTestCase
+{
+    /** Raison sociale avec exposants ²³ et § -> 422 sur companyName. */
+    public function testClientCompanyNameAvecParasitesEst422(): void
+    {
+        $client = $this->createAdminClient();
+        $seed   = $this->seedClient('Parasite Client SARL');
+
+        $body = $client->request('PATCH', '/api/clients/'.$seed->getId(), [
+            'headers' => ['Content-Type' => self::MERGE],
+            'json'    => ['companyName' => 'ACME²³§'],
+        ])->toArray(false);
+
+        self::assertResponseStatusCodeSame(422);
+        self::assertArrayHasKey('companyName', $this->violationsByPath($body));
+    }
+
+    /** Raison sociale legitime « Dupont & Fils » (esperluette) -> acceptee (200). */
+    public function testClientCompanyNameLegitimeEst200(): void
+    {
+        $client = $this->createAdminClient();
+        $seed   = $this->seedClient('Legit Client SARL');
+
+        $client->request('PATCH', '/api/clients/'.$seed->getId(), [
+            'headers' => ['Content-Type' => self::MERGE],
+            'json'    => ['companyName' => 'Dupont & Fils (Pôle n°2)'],
+        ]);
+
+        self::assertResponseStatusCodeSame(200);
+    }
+
+    /** Dirigeant avec chiffres -> 422 (profil nom de personne, pas de chiffres). */
+    public function testClientDirectorNameAvecChiffresEst422(): void
+    {
+        $client = $this->createAdminClient();
+        $seed   = $this->seedClient('Director Parasite SARL');
+
+        $body = $client->request('PATCH', '/api/clients/'.$seed->getId(), [
+            'headers' => ['Content-Type' => self::MERGE],
+            'json'    => ['directorName' => 'Jean123'],
+        ])->toArray(false);
+
+        self::assertResponseStatusCodeSame(422);
+        self::assertArrayHasKey('directorName', $this->violationsByPath($body));
+    }
+
+    /** N° de compte avec caractere special -> 422 (profil code alphanumerique). */
+    public function testClientAccountNumberAvecParasiteEst422(): void
+    {
+        $client = $this->createAdminClient();
+        $seed   = $this->seedClient('Account Parasite SARL');
+
+        $body = $client->request('PATCH', '/api/clients/'.$seed->getId(), [
+            'headers' => ['Content-Type' => self::MERGE],
+            'json'    => ['accountNumber' => '411#DUP'],
+        ])->toArray(false);
+
+        self::assertResponseStatusCodeSame(422);
+        self::assertArrayHasKey('accountNumber', $this->violationsByPath($body));
+    }
+
+    /** Fournisseur : raison sociale avec parasites -> 422 sur companyName. */
+    public function testSupplierCompanyNameAvecParasitesEst422(): void
+    {
+        $client = $this->createAdminClient();
+        $seed   = $this->seedSupplier('Parasite Fournisseur SARL');
+
+        $body = $client->request('PATCH', '/api/suppliers/'.$seed->getId(), [
+            'headers' => ['Content-Type' => self::MERGE],
+            'json'    => ['companyName' => 'NEGOCE~#|²'],
+        ])->toArray(false);
+
+        self::assertResponseStatusCodeSame(422);
+        self::assertArrayHasKey('companyName', $this->violationsByPath($body));
+    }
+}