Below are the most common errors.
404 not found
Reason: cannot find HTTP resource.
Solution: make sure that URL is configured properly.
403 Forbidden or 401 Unauthorized
Reason: cannot authenticate the request.
Solution: make sure that authentication for the resource is properly configured.
502 Bad Gateway
Reason: a server received an invalid response, most likely because of the network configuration issue.
Solution: contact your system administrator or Etlworks support.
504 Gateway Timeout
Reason: a time-out error.
Solution: by default, the HTTP timeout is set to 1 hour. You can try to increase the timeout for the HTTP connection.
500 Internal Error
Reason: an internal error generated by the web service.
Solution: contact owners of the web service you are trying to connect to.