I’m trying to fetch the permissions for a Microsoft 365 group calendar using delegated permissions in Microsoft Graph API. I’ve granted all the required API permissions, but I’m still get an access denied error.

Here’s the endpoint I’m using:

https://graph.microsoft.com/v1.0/groups/{group-id}/calendar/calendarPermissions

Despite having all the necessary permissions granted, I get the following error:

Error message

Additional Information:

• I’ve ensured that the signed-in user has sufficient privileges.
• All required permissions are granted, and consent has been given for the necessary scopes.

Steps taken:

• Checked and confirmed that all necessary permissions are granted in Azure AD.
• Verified that the signed-in user has the appropriate role and permissions.
• Used the correct group ID in the API call.

Question: why am I getting this “ErrorAccessDenied” error despite having all required permissions? Is there something I’m missing in terms of permissions or configuration that needs to be addressed to successfully fetch the calendar permissions?

Any insights or suggestions would be greatly appreciated!