Cause
The request is syntactically correct but contains semantic errors that prevent processing.Fix
Review the request data for logical errors and ensure all business rules are satisfied, then call the same operation again.Retry safety
Not retryable until the underlying state or request changes.Raised by
Many operations return this problem. Check the error responses on the operation you called. Examples:- Create an appointment
- Patch an appointment
- Authorize an appointment payment
- Create a contactless payment
- List appointment payments