Hi Vamsee,
To get a comprehensive answer to your question, it would be good if you could provide a bit more background on the scenario you have implemented. Also a speaking topic title would go a long way directing people with the right knowledge to your problem.
The error you are encountering means that you either provided wrong credentials or the user does not have sufficient authorization. What authentication is used here and how it is configured in your communication channel? Can you successfully perform the action using a test tool?
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