Hi Team,I have one Integration with POST request have used OAuth 2.0 Client Credential Grants.Initially was fine but now i am sporadically getting 403 errors.When i check log below is the snapcom.appiancorp.connectedsystems.http.oauth.HttpOAuthTokenRetriever - Error while retrieving token: request_error attempting to pass Authentication in body2023-12-20 22:16:23,379 [Appian Work Item - ### - WorkID ### - execution00 - process ### - model ### : UnattendedJavaActivityRequest] ERROR com.appiancorp.connectedsystems.http.execution.AppianHttpRequestExecutor - ConnectorRuntimeException [title=You are not permitted to perform the requested operation, The external system understood the request but refused to authorize it]I can confirm here, It is not Credential/Privilege issue. integration not even hitting external system.Please advise if anyone has faced the same.
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Are you working with HA (appian or integration)? Maybe there are several node instances and one is not synchonized or available?
Yes , My Prod instances is on HA.
Have you tried replicating the integration in Jmeter, Postman..... and checking if the problem is replicated working with several concurrent requests?
We have done this in lower environment. Seems working fine .
Could you please repeat the test in the environment you are experiencing the problem and check all the node logs in order to check of always fail in the same one?