The request lacks valid authentication credentials.
Forbidden. The request is not allowed.
The ad-hoc sub-process instance is not found or the provided key does not identify an ad-hoc sub-process.
An internal error occurred while processing the request.
The service is currently unavailable. This may happen only on some requests where the system creates backpressure to prevent the server's compute resources from being exhausted, avoiding more severe failures. In this case, the title of the error object contains RESOURCE_EXHAUSTED. Clients are recommended to eventually retry those requests after a backoff period. You can learn more about the backpressure mechanism here: https://docs.camunda.io/docs/components/zeebe/technical-concepts/internal-processing/#handling-backpressure .
The provided data is not valid.