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In case of errors in IDkollen's API the status code of the response will be 4xx or 5xx.

Errors with status code 400 is expected during normal operation. More information or an error code can be found in the message property.

HTTP/2.0 400 Bad Request
"message": "Invalid oneTimeCode"
Invalid oneTimeCodeThe oneTimeCode is invalid or expired.
Invalid organizationThe api-key is incorrect.

Besides status code 400, the following status codes can occur:

Status codeDescription
404Wrong URL or wrong parameters in the address
405Wrong method used (ex GET instead of POST)
500Internal server error (critical, should not occur during normal operation)
503Server not responding (critical, should not occur during normal operation)