diff --git a/api-v3/src/administration/users/dto/create-user.dto.ts b/api-v3/src/administration/users/dto/create-user.dto.ts
index dbc3917..fa5728f 100644
--- a/api-v3/src/administration/users/dto/create-user.dto.ts
+++ b/api-v3/src/administration/users/dto/create-user.dto.ts
@@ -12,6 +12,9 @@ import {
   MinLength,
 } from 'class-validator';
 
+const optionalText = ({ value }: { value: unknown }) =>
+  typeof value === 'string' && value.trim() ? value.trim() : null;
+
 export class CreateUserDto {
   @Transform(({ value }) =>
     typeof value === 'string' ? value.trim().toLowerCase() : value,
@@ -23,13 +26,38 @@ export class CreateUserDto {
   username!: string;
 
   @Transform(({ value }) =>
-    typeof value === 'string' ? value.trim().toLowerCase() : value,
+    typeof value === 'string' && value.trim() ? value.trim().toLowerCase() : null,
   )
   @IsOptional()
   @IsEmail()
   @MaxLength(320)
   email?: string | null;
 
+  @Transform(({ value }) =>
+    typeof value === 'string' && value.trim() ? value.replace(/\D/g, '') : null,
+  )
+  @IsOptional()
+  @Matches(/^\d{7,11}$/)
+  dni?: string | null;
+
+  @Transform(optionalText)
+  @IsOptional()
+  @IsString()
+  @MaxLength(40)
+  phone?: string | null;
+
+  @Transform(optionalText)
+  @IsOptional()
+  @IsString()
+  @MaxLength(160)
+  jobTitle?: string | null;
+
+  @Transform(optionalText)
+  @IsOptional()
+  @IsString()
+  @MaxLength(80)
+  employeeNumber?: string | null;
+
   @IsString()
   @MinLength(12)
   @MaxLength(128)