422 Unprocessable Entity
4xx Client Error. The request is well-formed but contains semantic errors the server can't process.
4xx Client Error
What it means
The request is well-formed but contains semantic errors the server can't process.
Common causes
Common in REST APIs for validation failures — correct JSON syntax, but a field fails business-logic validation (e.g. an invalid email format).
How to fix it
Check the response body for validation error details and correct the specific field(s) flagged.
Frequently asked questions
What does HTTP 422 mean?
The request is well-formed but contains semantic errors the server can't process.
What causes a 422 Unprocessable Entity?
Common in REST APIs for validation failures — correct JSON syntax, but a field fails business-logic validation (e.g. an invalid email format).
How do I fix a 422 error?
Check the response body for validation error details and correct the specific field(s) flagged.
Other 4xx Client Error codes
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