Hi @Agrawal Mohit • Thank you for reaching out.
Do you have any references to https://graph.windows.net in your custom policy?
If your custom policy is configured to use https://graph.microsoft.com, you are not required to make any changes. If there are any references to https://graph.windows.net, you need to review your policy to identify what that graph call is intended to do and replace that with Microsoft Graph API.
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