diff --git a/src/modules/users/dtos/entities.ts b/src/modules/users/dtos/entities.ts
index e84a09c..d20aa1b 100644
--- a/src/modules/users/dtos/entities.ts
+++ b/src/modules/users/dtos/entities.ts
@@ -79,11 +79,19 @@ export class BatchCreateUserReq {
   @ApiProperty({ type: [CreateUserReq] })
   users: CreateUserReq[];
 }
+
+class ErrorUsers {
+  @ApiProperty({ type: [CreateUserReq] })
+  user: CreateUserReq;
+  @ApiProperty()
+  error: string;
+}
+
 export class BatchCreateUserRes {
   @ApiProperty({ type: [User] })
   usersCreated: User[];
-  @ApiProperty({ type: [CreateUserReq] })
-  errorUsers: CreateUserReq[];
+  @ApiProperty({ type: [ErrorUsers] })
+  errorUsers: ErrorUsers[];
 }
 
 export class UpdateUserReq {
diff --git a/src/modules/users/users.service.ts b/src/modules/users/users.service.ts
index c544891..664e252 100644
--- a/src/modules/users/users.service.ts
+++ b/src/modules/users/users.service.ts
@@ -22,6 +22,7 @@ import { RolesService } from '../roles/roles.service';
 import { HIERARCHIES } from './hierarchies';
 import { LanguageEnum } from 'src/utils/languages.enum';
 import { UserByCustomer } from 'protospack-v2/dist/lib/Duc/interfaces/entities';
+import { EnrichErrorCode } from 'src/utils/ErrorBuilder';
 
 @Injectable()
 export class UsersService implements OnModuleInit {
@@ -144,7 +145,15 @@ export class UsersService implements OnModuleInit {
       }),
     );
     this.adjustUsersPayload(usersCreated);
-    return { errorUsers, usersCreated };
+
+    return {
+      usersCreated,
+      // mapping error code to message
+      errorUsers: errorUsers.map(({ user, error }) => ({
+        user,
+        error: EnrichErrorCode(error).message,
+      })),
+    };
   }
   async assignRoleToUser(body: AssignRoleToUserRequest) {
     return lastValueFrom(this.usersClientService.AssignRoleToUser(body));