422 Unprocessable Content

http

HTTP/1.1 422 Unprocessable Content

Explanation

Use 422 when the JSON shape is valid but business validation rules are not satisfied.

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Malformed request syntax or invalid shape.

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Missing or invalid authentication credentials.

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Authenticated but not allowed to perform the action.

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The resource does not exist.

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Request conflicts with current resource state.

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Optimistic concurrency guard failed.

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