422 validation
Validation error
https://errors.rdna.ai/validation
The request parsed successfully but failed an input or business rule.
- Code
- validation
- Status
- HTTP 422
- Retryable
- No
Meaning
The server understood the request representation, but one or more values do not satisfy the endpoint’s schema or domain rules.
When it is returned
Examples include missing or unknown fields, wrong field types, empty queries, invalid dates, unsupported jurisdictions, malformed publication numbers, and invalid chemical patterns.
This differs from malformed: a malformed request could not be parsed in the first place.
Client handling
Do not retry unchanged. Use the response detail to correct the input, then submit a new request. Match program behavior on the stable code, not the human-readable detail.