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The "invoke" calls to backend SQL server fails with 504 bad gateway error

The "invoke" calls to backend SQL server fails with 503 bad gateway error. This same call was working fine until recently. Tried deleting the existing connection and creating the new one, which did not work.


Encountered this same issue earlier around a year back and after few days it stopped occurring without any fix.



  "error": {
    "code": 504,
    "source": "",
    "clientRequestId": "fehwbfewhbf",
    "message": "BadGateway",
    "innerError": {
      "status": 504,
      "message": "The operation has timed out.\r\nclientRequestId: fehwbfewhbf",
      "error": {
        "message": "The operation has timed out."
      "source": ""






We would need further information to troubleshoot this. A dedicated Support Professional would need to obtain data from you and have a look at your setup to see why and where it is failing. I would recommend opening a support ticket with Microsoft for the same.

Can you direct me as in where i should open the ticket ??

Visit and you will see a Help+Support section. If you can't ask your admin to raise one on your behalf.

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