Validation Error – SignatureAPI Docs

What Happened

The request could not be processed because there is one or more validation errors in the body of the request.

The response includes an errors property with a list of the specific problems.

Review the list of errors in the errors property returned in the response.
Ensure that all required fields are included in the request and are correctly formatted.
Verify that the data types of the fields match the expected types (e.g., strings, integers, dates).
Check that all fields adhere to any specified constraints (e.g., length, range, format).
Consult the API documentation.