HTTP Reference
HTTP 422 Unprocessable Entity
The request syntax is valid, but semantic validation failed.
Common Causes
- Field format fails validation rules.
- Missing required business fields.
- Constraint conflicts with current data state.
Debugging Notes
- Return field-level validation messages.
- Keep schema validation consistent across frontend and backend.
Example Response
{
"status": 422,
"error": "Unprocessable Entity",
"message": "email must be valid"
}