In technical terms, is a polite way for a server to say: "I understood exactly what you sent, but your request is so messy or logically flawed that I simply can't do anything with it".
Unlike a 404 (Not Found) or a 500 (Server Error), a 422 error is specific to data validation. It often happens when: Error 422
: You sent text where the server expected a number (e.g., "twenty" instead of 20). In technical terms, is a polite way for
: The data looks right but doesn't follow the rules, like an invalid date format. In technical terms