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Virtusa Consulting and Services Pty Ltd
AU
Last activity: 16 Jan 2026 21:50 EST
Pega Knowlegde Buddy - Integration with Pega Constellation Apps
- An internal error occurred while fetching the results using data view. Please contact administrator.
- Access token endpoint invocation failed : {ErrorMessage=Response status : 401 Unauthorized, statuscode=401}
Getting the above error in Constellation application when accessing Pega Knowledge Buddy (KB). Double checked KB configuration and is as per requirement. Pega Cloud lab instance recently provisioned so assuming its Pega Cloud 3. When I test the KB in Pega Knowledge Buddy application it runs fine.
Pegasystems Inc.
GB
Hi @Atanu Sen, the 401 Unauthorized means that there is something wrong with credentials.
Anytime when I see a 401 on API call I would recommend to try the following:
- Double check the credentials you are using - sometimes with APIs you might accidentally use credentials from another environment.
- Test if API is working with these credentials if you call it manually from Postman.
- Try to reset credentials and use the new ones.
- Trace the invocation step by step to eyeball if there is something wrong.
Virtusa Consulting and Services Pty Ltd
AU
@aniki- off course. I am interested to know if there is a license issue, similar to this support ticket.
https://support.pega.com/question/error-while-using-pega-knowledge-budd…
Virtusa Consulting and Services Pty Ltd
AU
@aniki - I rechecked all the configuration and looks like its a product issue. Meanwhile I switched to basic auth to get it working.