diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02a1d49..9631bd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,7 @@ Ajouter dans le fichier .env du frontend
 * [#273] Créer une nouvelle expédition (étape 3)
 * [#256] Créer une nouvelle réception (étape 3 - bovin)
 * [#314] Création d'une page d'administration : listing des utilisateurs
+* [#313] Admin modification creation fournisseur
 
 ### Changed
 
diff --git a/frontend/components/address.vue b/frontend/components/address.vue
new file mode 100644
index 0000000..d24f5eb
--- /dev/null
+++ b/frontend/components/address.vue
@@ -0,0 +1,81 @@
+<template>
+    <form @submit.prevent="validateForm">
+        <div class="flex items-center justify-between gap-10">
+            <div>
+                <h1 class="text-3xl font-bold uppercase">
+                    {{ props.address ? "Modification d'une adresse" : "Ajout d'une adresse" }}
+                </h1>
+            </div>
+
+            <button
+                class="text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
+                type="submit"
+                :disabled="isLoading"
+            >
+                {{ props.address? "Sauvegarder" : "Ajouter" }}
+            </button>
+        </div>
+
+        <div class="grid grid-cols-2 gap-y-16 gap-x-12 mb-16 mt-10">
+            <UiTextInput id="address-label" v-model="form.label" label="Libellé" />
+            <UiTextInput id="address-street" v-model="form.street" label="Rue" />
+            <UiTextInput id="address-street2" v-model="form.street2" label="Complément" />
+            <UiTextInput id="address-postalCode" v-model="form.postalCode" label="Code postal" />
+            <UiTextInput id="address-city" v-model="form.city" label="Ville" />
+            <UiTextInput id="address-country" v-model="form.countryCode" label="Pays" />
+        </div>
+    </form>
+</template>
+
+<script setup lang="ts">
+import { AddressPayload } from "~/services/address"
+
+
+const route = useRoute()
+const router = useRouter()
+
+const props = defineProps<{
+    type?: "supplier" | "customer",
+    address?: AddressPayload | null
+}>()
+
+const isLoading = ref(false)
+
+const emptyForm = (): AddressPayload => ({
+    label: "",
+    street: "",
+    street2: null,
+    postalCode: "",
+    city: "",
+    countryCode: "",
+})
+
+const form = reactive<AddressPayload>(emptyForm())
+
+const hydrateForm = (address?: AddressPayload | null) => {
+    const data = address ?? emptyForm()
+    form.label = data.label ?? ""
+    form.street = data.street ?? ""
+    form.street2 = data.street2 ?? null
+    form.postalCode = data.postalCode ?? ""
+    form.city = data.city ?? ""
+    form.countryCode = data.countryCode ?? ""
+}
+
+watch(
+    () => props.address,
+    (addr) => {
+        hydrateForm(addr)
+    },
+    { immediate: true }
+)
+
+const validateForm = () => {
+    if (isLoading.value) return
+    emit("validate", {...form})
+}
+
+const emit = defineEmits<{
+    (event: 'validate', form: AddressPayload): void
+}>()
+</script>
diff --git a/frontend/i18n/locales/fr.json b/frontend/i18n/locales/fr.json
index 5341750..a210e30 100644
--- a/frontend/i18n/locales/fr.json
+++ b/frontend/i18n/locales/fr.json
@@ -56,7 +56,27 @@
             "delete": "Impossible de supprimer le bovin."
         },
         "supplier": {
-            "list": "Impossible de récupérer la liste des fournisseurs."
+            "list": "Impossible de récupérer la liste des fournisseurs.",
+            "fetch": "Impossible de récupérer le fournisseur.",
+            "create": "Impossible de créer le fournisseur.",
+            "update": "Impossible de mettre à jour le fournisseur.",
+            "nameRequired": "Le nom du fournisseur est obligatoire."
+        },
+        "address": {
+            "fetch": "Impossible de récupérer l'adresse.",
+            "create": "Impossible de créer l'adresse.",
+            "update": "Impossible de mettre à jour l'adresse.",
+            "entityNotFound": "Entité introuvable.",
+            "streetRequired": "La rue est obligatoire.",
+            "postalCodeRequired": "Le code postal est obligatoire.",
+            "cityRequired": "La ville est obligatoire.",
+            "countryCodeInvalid": "Le pays doit être un code ISO2 (2 lettres)."
+        },
+        "customer": {
+            "list": "Impossible de récupérer la liste des clients.",
+            "fetch": "Impossible de récupérer le client.",
+            "create": "Impossible de créer le client.",
+            "update": "Impossible de mettre à jour le client."
         },
         "truck": {
             "list": "Impossible de récupérer la liste des camions."
@@ -91,6 +111,14 @@
         "shipment": {
             "update": "Éxpedition mise à jour avec succès."
         },
+        "supplier": {
+            "create": "Fournisseur créé avec succès.",
+            "update": "Fournisseur mis à jour avec succès."
+        },
+        "address": {
+            "create": "Adresse créée avec succès.",
+            "update": "Adresse mise à jour avec succès."
+        },
         "auth": {
             "update": "Utilisateur mis à jour avec succès.",
             "create": "Utilisateur créé avec succès.",
diff --git a/frontend/pages/admin/supplier/[[id]].vue b/frontend/pages/admin/supplier/[[id]].vue
new file mode 100644
index 0000000..d3e39a5
--- /dev/null
+++ b/frontend/pages/admin/supplier/[[id]].vue
@@ -0,0 +1,194 @@
+<template>
+    <form @submit.prevent="validate">
+        <div class="flex items-center justify-between gap-10">
+            <h1 class="text-3xl font-bold uppercase">
+                {{ supplierId ? "Modifications du fournisseur" : "Ajout d'un fournisseur" }}
+            </h1>
+
+            <button
+                class="text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
+                type="submit"
+                :disabled="isLoading || !auth.isAdmin"
+            >
+                {{ supplierId ? "Sauvegarder" : "Ajouter" }}
+            </button>
+        </div>
+
+        <div class="grid grid-cols-2 gap-y-16 gap-x-12 mb-10 py-12  border-b border-black ">
+            <UiTextInput id="supplier-name" v-model="form.name" label="Nom du fournisseur" :disabled="!auth.isAdmin"/>
+            <UiTextInput id="supplier-email" v-model="form.email" label="Email" :disabled="!auth.isAdmin"/>
+            <UiTextInput id="supplier-phone" v-model="form.phone" label="Téléphone" :disabled="!auth.isAdmin"/>
+        </div>
+
+        <div class="flex items-center justify-between mb-4 py-6 border-t border-black"></div>
+        <div class="flex items-center justify-between mb-4">
+            <h2 class="text-3xl font-bold uppercase">Adresses fournisseur</h2>
+            <button
+                type="button"
+                class="text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
+                :disabled="supplierId === null || !auth.isAdmin"
+                @click="goToAddAddress"
+            >
+                Ajouter
+            </button>
+        </div>
+        <div class="overflow-x-auto mb-10">
+            <table class="w-full border-collapse">
+                <thead>
+                <tr class="text-left border-b border-gray-200">
+                    <th class="py-3 pr-4 text-sm uppercase">Libellé</th>
+                    <th class="py-3 pr-4 text-sm uppercase">Rue</th>
+                    <th class="py-3 pr-4 text-sm uppercase">Complément</th>
+                    <th class="py-3 pr-4 text-sm uppercase">Code postal</th>
+                    <th class="py-3 pr-4 text-sm uppercase">Ville</th>
+                    <th class="py-3 pr-4 text-sm uppercase">Pays</th>
+                </tr>
+                </thead>
+                <tbody>
+                <template v-if="form.addresses.length === 0">
+                    <tr>
+                        <td colspan="6" class="py-4 text-slate-400">
+                            Aucune adresse.
+                        </td>
+                    </tr>
+                </template>
+                <template v-else>
+                    <tr
+                        v-for="(address, index) in form.addresses"
+                        :key="address.id ?? index"
+                        class="border-b border-gray-100 hover:bg-slate-50"
+                        :class="auth.isAdmin ? 'cursor-pointer' : 'cursor-not-allowed opacity-60'"
+                        @click="goToEditAddress(address.id ?? null)"
+                    >
+                        <td class="py-3 pr-4">{{ address.label || "—" }}</td>
+                        <td class="py-3 pr-4">{{ address.street || "—" }}</td>
+                        <td class="py-3 pr-4">{{ address.street2 || "—" }}</td>
+                        <td class="py-3 pr-4">{{ address.postalCode || "—" }}</td>
+                        <td class="py-3 pr-4">{{ address.city || "—" }}</td>
+                        <td class="py-3 pr-4">{{ address.countryCode || "—" }}</td>
+                    </tr>
+                </template>
+                </tbody>
+            </table>
+        </div>
+    </form>
+</template>
+
+<script setup lang="ts">
+import {computed, reactive, ref, watch} from "vue"
+import {createSupplier, getSupplier, updateSupplier} from "~/services/supplier"
+import type {SupplierData, SupplierFormData, SupplierPayload} from "~/services/dto/supplier-data"
+import {useAuthStore} from "~/stores/auth"
+
+definePageMeta({layout: "admin"})
+
+const route = useRoute()
+const router = useRouter()
+const auth = useAuthStore()
+
+const resolveId = (param: unknown) => {
+    const idStr = Array.isArray(param) ? param[0] : param
+    if (!idStr) return null
+    const id = Number(idStr)
+    return Number.isFinite(id) ? id : null
+}
+const supplierId = computed(() => resolveId(route.params.id))
+const isLoading = ref(false)
+const form = reactive<SupplierFormData>({
+    name: "",
+    email: "",
+    phone: "",
+    addresses: [],
+})
+
+const goToAddAddress = () => {
+    if (supplierId.value === null || !auth.isAdmin) return
+    router.push({
+        path: "/admin/supplier/address",
+        query: {
+            supplierId: String(supplierId.value),
+            fromSupplier: "1",
+        },
+    })
+}
+
+const goToEditAddress = (addressId: number | null) => {
+    if (supplierId.value === null || addressId === null || !auth.isAdmin) return
+    router.push({
+        path: "/admin/supplier/address",
+        query: {
+            supplierId: String(supplierId.value),
+            addressId: String(addressId),
+            fromSupplier: "1",
+        },
+    })
+}
+
+const hydrateFromSupplier = (supplier: SupplierData | null) => {
+    if (!supplier) return
+    form.name = supplier.name ?? ""
+    form.email = supplier.email ?? ""
+    form.phone = supplier.phone ?? ""
+    if (!Array.isArray(supplier.addresses) || supplier.addresses.length === 0) {
+        form.addresses = []
+        return
+    }
+    if (typeof supplier.addresses[0] === "string") {
+        form.addresses = []
+        return
+    }
+
+    form.addresses = supplier.addresses.map((address) => ({
+        id: address.id ?? null,
+        label: address.label ?? "",
+        street: address.street ?? "",
+        street2: address.street2 ?? null,
+        postalCode: address.postalCode ?? "",
+        city: address.city ?? "",
+        countryCode: address.countryCode ?? "",
+    }))
+}
+
+watch(
+    () => supplierId.value,
+    async (id) => {
+        if (id === null) return
+        isLoading.value = true
+        try {
+            const supplier = await getSupplier(id)
+            hydrateFromSupplier(supplier)
+        } finally {
+            isLoading.value = false
+        }
+    },
+    {immediate: true}
+)
+
+async function validate() {
+    if (isLoading.value) return
+    if (!auth.isAdmin) return
+    isLoading.value = true
+
+    try {
+        const name = form.name.trim()
+        const email = (form.email ?? "").trim() || null
+        const phone = (form.phone ?? "").trim() || null
+
+        const supplierPayload: SupplierPayload = {
+            name,
+            email,
+            phone,
+        }
+
+        if (supplierId.value !== null) {
+            await updateSupplier(supplierId.value, supplierPayload)
+        } else {
+            await createSupplier(supplierPayload)
+        }
+
+        await router.push("/admin/supplier/supplier-list")
+    } finally {
+        isLoading.value = false
+    }
+}
+</script>
diff --git a/frontend/pages/admin/supplier/address.vue b/frontend/pages/admin/supplier/address.vue
new file mode 100644
index 0000000..c13a0f3
--- /dev/null
+++ b/frontend/pages/admin/supplier/address.vue
@@ -0,0 +1,47 @@
+<template>
+    <Address type="supplier" :address="address" @validate="validate"/>
+</template>
+
+<script setup lang="ts">
+import type {AddressData, AddressPayload} from "~/services/address";
+import {createAddress, getAddress, updateAddress} from "~/services/address";
+import {getSupplier, updateSupplier} from "~/services/supplier";
+import type {SupplierData} from "~/services/dto/supplier-data";
+
+definePageMeta({ layout: "admin" })
+
+const route = useRoute()
+const router = useRouter()
+const supplierId = computed(() => { return Number(route.query.supplierId) })
+const supplier = ref<SupplierData|null>(null);
+const addressId = computed(() => { return route.query.addressId !== undefined ? Number(route.query.addressId) : null })
+const address = ref<AddressData|null>(null)
+
+const validate = async (address: AddressPayload) => {
+    try {
+        if (addressId.value !== null) {
+            await updateAddress(addressId.value, address)
+        } else {
+            await addAddress(address)
+        }
+    } finally {
+        await router.push('/admin/supplier/' + supplierId.value)
+    }
+}
+
+const addAddress = async (address: AddressPayload) => {
+    const response: AddressData = await createAddress(address)
+    const addressIRI = `/api/addresses/${response.id}`
+    const existingIris = (supplier.value.addresses ?? []).map((item: any) => `/api/addresses/${item.id}`)
+    const next = [...new Set([...existingIris, addressIRI])]
+
+    return await updateSupplier(supplierId.value, { addresses: next })
+}
+
+onMounted(async () => {
+    supplier.value = await getSupplier(supplierId.value)
+    if (addressId.value !== null) {
+        address.value = await getAddress(addressId.value)
+    }
+})
+</script>
diff --git a/frontend/pages/admin/supplier/supplier-list.vue b/frontend/pages/admin/supplier/supplier-list.vue
index 7840c65..9f231f9 100644
--- a/frontend/pages/admin/supplier/supplier-list.vue
+++ b/frontend/pages/admin/supplier/supplier-list.vue
@@ -1,16 +1,20 @@
 <template>
     <div class="flex items-center justify-between">
-        <h1 class="text-3xl font-bold uppercase"> Fournisseurs </h1>
-        <NuxtLink to="/admin/supplier"
-                  class="flex items-center justify-center text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
+        <h1 class="text-3xl font-bold uppercase">Fournisseurs</h1>
+        <NuxtLink
+            to="/admin/supplier"
+            class="flex items-center justify-center text-xl uppercase bg-primary-500 text-white h-[50px] w-[272px]"
+            :class="auth.isAdmin ? '' : 'cursor-not-allowed opacity-60'"
+            @click="handleAddClick"
         >
             Ajouter
         </NuxtLink>
     </div>
-    <div class="mt-6 border border-slate-200 mb-16">
+
+    <div v-if="auth.isAdmin" class="mt-6 border border-slate-200 mb-16">
         <div class="max-h-96 overflow-y-auto">
             <div
-                class="sticky top-0 z-10 grid grid-cols-6 gap-4 bg-slate-100 px-4 py-3 text-sm font-semibold uppercase tracking-wide"
+                class="sticky top-0 z-10 grid grid-cols-7 gap-4 bg-slate-100 px-4 py-3 text-sm font-semibold uppercase tracking-wide"
             >
                 <div>Nom</div>
                 <div>Mail</div>
@@ -18,57 +22,91 @@
                 <div>Complément</div>
                 <div>Code Postal</div>
                 <div>Ville</div>
+                <div>Pays</div>
+            </div>
+
+            <div v-if="supplierList.length === 0" class="px-4 py-6 text-slate-400">
+                Aucun fournisseur.
             </div>
 
             <div v-for="supplier in supplierList" :key="supplier.id">
-                <template v-if="supplier.addresses?.length">
+                <div
+                    v-if="!supplier.addresses || supplier.addresses.length === 0"
+                    class="grid grid-cols-7 border-t gap-4 px-4 py-2 hover:bg-slate-50 cursor-pointer"
+                    @click="goToSupplier(supplier.id)"
+                >
+                    <div class="truncate">{{ supplier.name }}</div>
+                    <div class="truncate">{{ supplier.email }}</div>
+                    <div class="col-span-1">Pas d'adresse</div>
+                    <div class="uppercase truncate">{{"—"}}</div>
+                    <div class="uppercase truncate">{{"—"}}</div>
+                    <div class="uppercase truncate">{{"—"}}</div>
+                    <div class="uppercase truncate">{{"—"}}</div>
+                </div>
+
+                <template v-else-if="supplier.addresses.length > 0">
                     <div
-                        v-for="addr in supplier.addresses"
-                        :key="addr.id"
-                        class="grid grid-cols-6 hover:bg-slate-50 border-t gap-4 px-4 py-2"
+                        v-for="(address, idx) in supplier.addresses"
+                        :key="address.id ?? `${supplier.id}-${idx}-${address.street}-${address.postalCode}`"
+                        class="grid grid-cols-7 hover:bg-slate-50 border-t gap-4 px-4 py-2 cursor-pointer"
+                        :class="idx > 0 ? 'pl-4 border-l-4 border-l-slate-200 bg-slate-50' : ''"
                         @click="goToSupplier(supplier.id)"
                     >
                         <div class="truncate">
-                            {{ supplier.name }}
+                            {{ idx === 0 ? supplier.name : "↳" }}
                         </div>
-                        <div class="truncate">
-                            {{ supplier.email }}
-                        </div>
-                        <div class="truncate">
-                            {{ addr.street }}
-                        </div>
-                        <div class="truncate">
-                            {{ addr.street2 }}
-                        </div>
-                        <div>{{ addr.postalCode }}</div>
-                        <div class="uppercase truncate">
-                            {{ addr.city }}
+                        <div class="truncate">{{ idx === 0 ? supplier.email : ""  }}</div>
+                        <div class="truncate">{{ address.street || "—" }}</div>
+                        <div class="truncate">{{ address.street2 || "—" }}</div>
+                        <div>{{ address.postalCode || "—"  }}</div>
+                        <div class="uppercase truncate">{{ address.city || "—"  }}</div>
+                        <div class="uppercase truncate">{{ address.countryCode || "—" }}</div>
+                    </div>
+                </template>
+
+                <template v-else>
+                    <div
+                        class="grid grid-cols-7 hover:bg-slate-50 border-t gap-4 px-4 py-2 cursor-pointer"
+                        @click="goToSupplier(supplier.id)"
+                    >
+                        <div class="truncate">{{ supplier.name }}</div>
+                        <div class="truncate">{{ supplier.email }}</div>
+                        <div class="col-span-5 text-slate-400">
+                            Adresses non chargées
                         </div>
                     </div>
                 </template>
             </div>
         </div>
     </div>
+    <div v-else class="mt-6 border border-slate-200 mb-16 px-4 py-6 text-slate-400">
+        Accès réservé aux administrateurs.
+    </div>
 </template>
 
 <script setup lang="ts">
-import type {SupplierData} from "~/services/dto/supplier-data"
-import {getSupplierList} from "~/services/supplier"
+import { getSupplierList } from "~/services/supplier"
+import type { SupplierData } from "~/services/dto/supplier-data"
+import { useAuthStore } from "~/stores/auth"
 
-definePageMeta({layout: "admin"})
+definePageMeta({ layout: "admin" })
 
 const supplierList = ref<SupplierData[]>([])
 const router = useRouter()
-
+const auth = useAuthStore()
 
 const goToSupplier = (id: number) => {
+    if (!auth.isAdmin) return
     router.push(`/admin/supplier/${id}`)
 }
 
+const handleAddClick = (event: Event) => {
+    if (auth.isAdmin) return
+    event.preventDefault()
+}
+
 onMounted(async () => {
-    supplierList.value = (await getSupplierList(false)) ?? []
+    if (!auth.isAdmin) return
+    supplierList.value = await getSupplierList()
 })
-
 </script>
-
-
diff --git a/frontend/services/address.ts b/frontend/services/address.ts
new file mode 100644
index 0000000..4b353c8
--- /dev/null
+++ b/frontend/services/address.ts
@@ -0,0 +1,45 @@
+import { useApi } from '~/composables/useApi'
+import type { AddressData } from '~/services/dto/address-data'
+export interface AddressPayload {
+    label: string
+    street: string
+    street2?: string | null
+    postalCode: string
+    city: string
+    countryCode: string
+}
+
+export interface AddressData extends AddressPayload {
+    id: number
+}
+
+export async function createAddress(
+    payload: AddressPayload
+): Promise<AddressData> {
+    const api = useApi()
+
+    return await api.post<AddressData>('addresses', payload, {
+        toastErrorKey: 'errors.address.create',
+        toastSuccessKey: 'success.address.create',
+    })
+}
+
+export async function updateAddress(
+    id: number,
+    payload: AddressPayload
+): Promise<AddressData> {
+    const api = useApi()
+
+    return await api.patch<AddressData>(`addresses/${id}`, payload, {
+        toastErrorKey: 'errors.address.update',
+        toastSuccessKey: 'success.address.update',
+    })
+}
+
+export async function getAddress(id: number): Promise<AddressData> {
+    const api = useApi()
+
+    return await api.get<AddressData>(`addresses/${id}`, {}, {
+        toastErrorKey: 'errors.address.fetch',
+    })
+}
diff --git a/frontend/services/dto/address-data.ts b/frontend/services/dto/address-data.ts
index db93c92..4fa7a78 100644
--- a/frontend/services/dto/address-data.ts
+++ b/frontend/services/dto/address-data.ts
@@ -6,5 +6,14 @@ export interface AddressData {
     postalCode: string
     city: string
     countryCode: string
-    fullAddress?: string
+}
+
+export interface AddressFormData {
+    id?: number | null
+    label: string
+    street: string
+    street2?: string | null
+    postalCode: string
+    city: string
+    countryCode: string
 }
diff --git a/frontend/services/dto/supplier-data.ts b/frontend/services/dto/supplier-data.ts
index 80f9f80..f44eb4b 100644
--- a/frontend/services/dto/supplier-data.ts
+++ b/frontend/services/dto/supplier-data.ts
@@ -1,9 +1,25 @@
-import type { AddressData } from '~/services/dto/address-data'
+import type { AddressFormData } from "~/services/dto/address-data"
+
+export type SupplierAddresses = AddressFormData[] | string[]
 
 export interface SupplierData {
     id: number
     name: string
     email?: string | null
     phone?: string | null
-    addresses?: AddressData[] | null
+    addresses: SupplierAddresses
+}
+
+export interface SupplierFormData {
+    name: string
+    email?: string
+    phone?: string
+    addresses: AddressFormData[]
+}
+
+export type SupplierPayload = {
+    name: string
+    email?: string | null
+    phone?: string | null
+    addresses?: string[]
 }
diff --git a/frontend/services/supplier.ts b/frontend/services/supplier.ts
index 90cec8e..9a47e40 100644
--- a/frontend/services/supplier.ts
+++ b/frontend/services/supplier.ts
@@ -1,23 +1,42 @@
-import { useApi } from '~/composables/useApi'
-import type { SupplierData } from '~/services/dto/supplier-data'
+import { useApi } from "~/composables/useApi"
+import type { SupplierData, SupplierPayload } from "~/services/dto/supplier-data"
 
 export type SupplierListResponse =
     | SupplierData[]
-    | { 'hydra:member'?: SupplierData[] }
+    | { "hydra:member"?: SupplierData[] }
 
 export async function getSupplierList(): Promise<SupplierData[]> {
     const api = useApi()
-    const response = await api.get<SupplierListResponse>('suppliers', {}, {
-        toastErrorKey: 'errors.supplier.list'
+    const response = await api.get<SupplierListResponse>("suppliers", {}, {
+        toastErrorKey: "errors.supplier.list",
     })
 
-    if (Array.isArray(response)) {
-        return response
+    if (Array.isArray(response)) return response
+    if (response && typeof response === "object" && Array.isArray(response["hydra:member"])) {
+        return response["hydra:member"]
     }
-
-    if (response && typeof response === 'object' && Array.isArray(response['hydra:member'])) {
-        return response['hydra:member']
-    }
-
     return []
 }
+
+export async function getSupplier(id: number): Promise<SupplierData> {
+    const api = useApi()
+    return api.get<SupplierData>(`suppliers/${id}`, {}, {
+        toastErrorKey: "errors.supplier.fetch",
+    })
+}
+
+export async function updateSupplier(id: number, payload: Partial<SupplierPayload>): Promise<SupplierData> {
+    const api = useApi()
+    return api.patch<SupplierData>(`suppliers/${id}`, payload, {
+        toastErrorKey: "errors.supplier.update",
+        toastSuccessKey: "success.supplier.update",
+    })
+}
+
+export async function createSupplier(payload: SupplierPayload): Promise<SupplierData> {
+    const api = useApi()
+    return api.post<SupplierData>("suppliers", payload, {
+        toastErrorKey: "errors.supplier.create",
+        toastSuccessKey: "success.supplier.create",
+    })
+}
diff --git a/src/Entity/Address.php b/src/Entity/Address.php
index 8a13068..b0cc38c 100644
--- a/src/Entity/Address.php
+++ b/src/Entity/Address.php
@@ -7,6 +7,8 @@ namespace App\Entity;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Patch;
+use ApiPlatform\Metadata\Post;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -23,6 +25,16 @@ use Symfony\Component\Serializer\Attribute\Groups;
         new GetCollection(
             normalizationContext: ['groups' => ['address:read']],
         ),
+        new Post(
+            normalizationContext: ['groups' => ['address:read']],
+            denormalizationContext: ['groups' => ['address:write']],
+            security: "is_granted('ROLE_ADMIN')",
+        ),
+        new Patch(
+            normalizationContext: ['groups' => ['address:read']],
+            denormalizationContext: ['groups' => ['address:write']],
+            security: "is_granted('ROLE_ADMIN')",
+        ),
     ],
     security: "is_granted('ROLE_USER')",
 )]
@@ -35,27 +47,27 @@ class Address
     private ?int $id = null;
 
     #[ORM\Column(length: 120)]
-    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read'])]
+    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read', 'address:write'])]
     private string $label = '';
 
     #[ORM\Column(length: 180)]
-    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read'])]
+    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read', 'address:write'])]
     private string $street = '';
 
     #[ORM\Column(name: 'street2', length: 180, nullable: true)]
-    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read'])]
+    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read', 'address:write'])]
     private ?string $street2 = null;
 
     #[ORM\Column(name: 'postal_code', length: 20)]
-    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read'])]
+    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read', 'address:write'])]
     private string $postalCode = '';
 
     #[ORM\Column(length: 120)]
-    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read'])]
+    #[Groups(['address:read', 'supplier:read', 'reception:read', 'customer:read', 'shipment:read', 'address:write'])]
     private string $city = '';
 
     #[ORM\Column(name: 'country_code', length: 2)]
-    #[Groups(['address:read', 'supplier:read', 'customer:read'])]
+    #[Groups(['address:read', 'supplier:read', 'customer:read', 'address:write'])]
     private string $countryCode = '';
 
     /**
diff --git a/src/Entity/Supplier.php b/src/Entity/Supplier.php
index 189f001..5e467cd 100644
--- a/src/Entity/Supplier.php
+++ b/src/Entity/Supplier.php
@@ -8,6 +8,8 @@ use ApiPlatform\Metadata\ApiProperty;
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Patch;
+use ApiPlatform\Metadata\Post;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
@@ -24,6 +26,21 @@ use Symfony\Component\Serializer\Attribute\Groups;
         new GetCollection(
             normalizationContext: ['groups' => ['supplier:read']],
         ),
+        new GetCollection(
+            uriTemplate: '/admin/suppliers',
+            normalizationContext: ['groups' => ['supplier:read']],
+            security: "is_granted('ROLE_ADMIN')"
+        ),
+        new Post(
+            normalizationContext: ['groups' => ['supplier:read']],
+            denormalizationContext: ['groups' => ['supplier:write']],
+            security: "is_granted('ROLE_ADMIN')",
+        ),
+        new Patch(
+            normalizationContext: ['groups' => ['supplier:read']],
+            denormalizationContext: ['groups' => ['supplier:write']],
+            security: "is_granted('ROLE_ADMIN')",
+        ),
     ],
     security: "is_granted('ROLE_USER')",
 )]
@@ -36,15 +53,15 @@ class Supplier
     private ?int $id = null;
 
     #[ORM\Column(length: 180)]
-    #[Groups(['supplier:read', 'reception:read'])]
+    #[Groups(['supplier:read', 'reception:read', 'supplier:write'])]
     private string $name = '';
 
     #[ORM\Column(length: 180, nullable: true)]
-    #[Groups(['supplier:read', 'reception:read'])]
+    #[Groups(['supplier:read', 'reception:read', 'supplier:write'])]
     private ?string $email = null;
 
     #[ORM\Column(length: 40, nullable: true)]
-    #[Groups(['supplier:read', 'reception:read'])]
+    #[Groups(['supplier:read', 'reception:read', 'supplier:write'])]
     private ?string $phone = null;
 
     /**
@@ -52,7 +69,7 @@ class Supplier
      */
     #[ORM\ManyToMany(targetEntity: Address::class, inversedBy: 'suppliers')]
     #[ORM\JoinTable(name: 'supplier_address')]
-    #[Groups(['supplier:read'])]
+    #[Groups(['supplier:read', 'supplier:write'])]
     #[ApiProperty(readableLink: true)]
     private Collection $addresses;
 
@@ -109,4 +126,30 @@ class Supplier
     {
         return $this->addresses;
     }
+
+    public function setAddresses(iterable $addresses): self
+    {
+        $this->addresses->clear();
+        foreach ($addresses as $address) {
+            $this->addAddress($address);
+        }
+
+        return $this;
+    }
+
+    public function addAddress(Address $address): self
+    {
+        if (!$this->addresses->contains($address)) {
+            $this->addresses->add($address);
+        }
+
+        return $this;
+    }
+
+    public function removeAddress(Address $address): self
+    {
+        $this->addresses->removeElement($address);
+
+        return $this;
+    }
 }