Sailpoint Identity function failure

Hi Everyone,

We have used the built in Sentinel Data connector for Sailpoint IdentityNow. The Sailpoint team have confirmed they followed the access token steps provided in the data connector.

We have successfully deployed it with the client ID, secret and tenant ID. However we are getting no events and the log stream only shows this error:

The Sailpoint team have confirmed they are getting no api logs from the client ID they have provided us and have used postman to confirm the client ID + secret work.

Any guidance on how to troubleshoot or a possible solution for this would be greatly appreciated!