Hello Kasturi Sharma,
Thank you for reaching out to Microsoft Support!
In response to your question, we have tested this endpoint, and the test results are shown below, and it works well.
The 403Forbidden error appears only when the user is not in the group that the user accesses. Please check whether your account is in the group.
To check backend configurations or service level restrictions, please open a support ticket. In order to get help from the API Owner.
Hope this helps.
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