diff --git a/dist/Notary/Contact.js b/dist/Notary/Contact.js
index 96498cb..0bf1b86 100644
--- a/dist/Notary/Contact.js
+++ b/dist/Notary/Contact.js
@@ -59,8 +59,8 @@ __decorate([
     (0, class_transformer_1.Expose)(),
     (0, class_validator_1.IsOptional)({ groups: ["updateCustomer"] }),
     (0, class_validator_1.NotEquals)(null || '', { groups: ["updateCustomer"], message: "Email ne peut pas être vide" }),
-    (0, class_validator_1.IsNotEmpty)({ groups: ["createCustomer"] }),
-    (0, class_validator_1.IsEmail)({}, { groups: ["createCustomer", "updateCustomer"], message: "Email ne peut pas être vide" }),
+    (0, class_validator_1.IsNotEmpty)({ groups: ["createCustomer"], message: "Email ne peut pas être vide" }),
+    (0, class_validator_1.IsEmail)({}, { groups: ["createCustomer", "updateCustomer"], message: "Format de l'email incorrect" }),
     __metadata("design:type", String)
 ], Contact.prototype, "email", void 0);
 __decorate([
diff --git a/dist/Notary/OfficeFolder.js b/dist/Notary/OfficeFolder.js
index 11528d9..2039979 100644
--- a/dist/Notary/OfficeFolder.js
+++ b/dist/Notary/OfficeFolder.js
@@ -107,6 +107,8 @@ __decorate([
 __decorate([
     (0, class_transformer_1.Expose)(),
     (0, class_validator_1.IsOptional)({ groups: ["updateFolder"] }),
+    (0, class_validator_1.IsNotEmpty)({ groups: ["createFolder"], message: "Au moins un collaborateur est requis" }),
+    (0, class_validator_1.NotEquals)([], { groups: ["updateFolder", "createFolder"], message: "Au moins un collaborateur est requis" }),
     (0, class_validator_1.ValidateNested)({ groups: ["createFolder", "updateFolder"] }),
     (0, class_transformer_1.Type)(() => User_1.default),
     __metadata("design:type", Array)
diff --git a/src/Notary/Contact.ts b/src/Notary/Contact.ts
index b2fda06..6e49deb 100644
--- a/src/Notary/Contact.ts
+++ b/src/Notary/Contact.ts
@@ -23,8 +23,8 @@ export default class Contact extends ContactCustomer {
   @Expose()
   @IsOptional({ groups: ["updateCustomer"]})
   @NotEquals(null || '', { groups: ["updateCustomer"], message: "Email ne peut pas être vide" })
-  @IsNotEmpty({ groups: ["createCustomer"] })
-  @IsEmail({}, { groups: ["createCustomer", "updateCustomer"], message: "Email ne peut pas être vide" })
+  @IsNotEmpty({ groups: ["createCustomer"], message: "Email ne peut pas être vide" })
+  @IsEmail({}, { groups: ["createCustomer", "updateCustomer"], message: "Format de l'email incorrect" })
   public override email!: string;
 
   @Expose()
diff --git a/src/Notary/OfficeFolder.ts b/src/Notary/OfficeFolder.ts
index b019212..c54ec7f 100644
--- a/src/Notary/OfficeFolder.ts
+++ b/src/Notary/OfficeFolder.ts
@@ -68,6 +68,8 @@ export default class OfficeFolder extends OfficeFolderCustomer {
 
   @Expose()
   @IsOptional({ groups: ["updateFolder"] })
+  @IsNotEmpty({ groups: ["createFolder"], message: "Au moins un collaborateur est requis" })
+  @NotEquals([] || null, { groups: ["updateFolder", "createFolder"], message: "Au moins un collaborateur est requis" })
   @ValidateNested({ groups: ["createFolder", "updateFolder"] })
   @Type(() => User)
   stakeholders?: User[];