◆Error Codes Wiki

HTTP 422 Unprocessable Entity — Validation Error

Warning4xx client error

Overview

HTTP 422 Unprocessable Entity means the request was well-formed but contains semantic errors or fails validation.

Key Details

  • Status: 422 Unprocessable Entity
  • Category: 4xx Client Error
  • Request syntax is correct but content is invalid
  • Common in API form validation errors

Common Causes

  • Required field is missing
  • Field value fails validation (wrong format, out of range)
  • Business logic validation failed
  • Email format invalid, password too short, etc.

Steps

  1. 1Read the response body for specific validation errors
  2. 2Fix the invalid fields in your request
  3. 3Check API documentation for field requirements
  4. 4Validate data client-side before sending

Tags

http-status4xx-client-errorhttp-422httpstatus-code

More in 4xx Client Error

http-400-bad-requestHTTP 400 Bad Request — What It Means & How to Fix It
Error
http-401-unauthorizedHTTP 401 Unauthorized — What It Means & How to Fix It
Error
http-402-payment-requiredHTTP 402 Payment Required — What It Means & How to Fix It
Error
http-403-forbiddenHTTP 403 Forbidden — What It Means & How to Fix It
Error
http-404-not-foundHTTP 404 Not Found — What It Means & How to Fix It
Error
http-405-method-not-allowedHTTP 405 Method Not Allowed — What It Means & How to Fix It
Error

Frequently Asked Questions

400 is malformed syntax. 422 is valid syntax but invalid semantics.