diff --git a/src/frontend/app/administration/contact/page/form/contacts-form.component.ts b/src/frontend/app/administration/contact/page/form/contacts-form.component.ts
index 4a50925405a4f70b08c89f98734bd0052bac4376..289b37ec41e252877ceb5744a1585e5b097457d6 100644
--- a/src/frontend/app/administration/contact/page/form/contacts-form.component.ts
+++ b/src/frontend/app/administration/contact/page/form/contacts-form.component.ts
@@ -234,7 +234,7 @@ export class ContactsFormComponent implements OnInit {
             id: 'externalId_m2m',
             unit: 'complement',
             label: this.lang.IdMaarch2Gec,
-            desc: `Format attendu : SIRET/ENTITY_ID de l'entité destinatrice (${this.lang.see} <a href="${this.maarch2GecUrl}" target="_blank">MAARCH2GEC</a>)`,
+            desc: `${this.lang.m2mContactInfo} (${this.lang.see} <a href="${this.maarch2GecUrl}" target="_blank">MAARCH2GEC</a>)`,
             type: 'string',
             control: new FormControl(),
             required: false,
@@ -824,7 +824,7 @@ export class ContactsFormComponent implements OnInit {
                 unit: 'complement',
                 label: 'm2m_annuary_id',
                 type: 'string',
-                control: new FormControl({disabled: true}),
+                control: new FormControl({ value: '', disabled: true }),
                 required: false,
                 display: true,
                 filling: false,
diff --git a/src/frontend/lang/lang-en.ts b/src/frontend/lang/lang-en.ts
index e0133957e22888c3e80748684214a4497c88be3a..92a78e247639480b8a796c23d4176e0dc8d251c2 100755
--- a/src/frontend/lang/lang-en.ts
+++ b/src/frontend/lang/lang-en.ts
@@ -1440,6 +1440,7 @@ export const LANG_EN = {
     "searchCommunicationMean": "Search communication mean",
     "searchExternalIdM2M": "Search M2GEC Identifier",
     "goToFolder": "Go to folder",
+    "m2mContactInfo": "Expected Format : SIRET/ENTITY_ID of destination entity",
     "ADD": "Add",
     "UP": "Update",
     "DEL": "Delete",
diff --git a/src/frontend/lang/lang-fr.ts b/src/frontend/lang/lang-fr.ts
index 414991920f12919240967b27f811fdd73eef5ffa..a129a81571373f979b5ae46ac6fed0b4f7064c9d 100755
--- a/src/frontend/lang/lang-fr.ts
+++ b/src/frontend/lang/lang-fr.ts
@@ -1480,6 +1480,7 @@ export const LANG_FR = {
     "searchCommunicationMean": "Recherchez un moyen de communication",
     "searchExternalIdM2M": "Recherchez un identifiant M2GEC",
     "goToFolder": "Accéder au dossier",
+    "m2mContactInfo": "Format attendu : SIRET/ENTITY_ID de l'entité destinatrice",
     "ADD": "Ajout",
     "UP": "Modification",
     "DEL": "Suppression",
diff --git a/src/frontend/lang/lang-nl.ts b/src/frontend/lang/lang-nl.ts
index 8b7ed428f7f703a44ade637d6f9a8b75d500ccd7..8343c18e79f622f9dd73eef1da401d9ee0acbcc9 100755
--- a/src/frontend/lang/lang-nl.ts
+++ b/src/frontend/lang/lang-nl.ts
@@ -1465,6 +1465,7 @@ export const LANG_NL = {
     "searchCommunicationMean": "Search communication mean", //_TO_TRANSLATE
     "searchExternalIdM2M": "Search M2GEC Identifier", //_TO_TRANSLATE
     "goToFolder": "Go to folder", //_TO_TRANSLATE
+    "m2mContactInfo": "Expected Format : SIRET/ENTITY_ID of destination entity", //_TO_TRANSLATE
     "ADD": "Add", //_TO_TRANSLATE
     "UP": "Update", //_TO_TRANSLATE
     "DEL": "Delete", //_TO_TRANSLATE