Integration between UiPath Test Suite and Orchestrator issue

Hi,

While triggering a test set from Test Manager, I get following issue:

https://xxx/api/TestAutomation/CreateTestSetForReleaseVersion failed with status Forbidden —> System.Net.Http.HttpRequestException: Response status code does not indicate success: 403 (Forbidden)

It seems to me Test Manager is unauthorized to access the Orchestrator link.

How can I resolve this?

Do the user hase permission to run the testcases from orchestrator? Can you execute the test case manually from orchestrator?