Hi @Tom Moore ,
Agree with you, MS Graph API URL is different for Azure China when compared to Azure Global as documented here. As mentioned in this documentation as on Dec 16, 2021 , creation of EU Data Boundary for the Microsoft Cloud is still in progress and planned by end of 2022. Hence I would request you to wait for further announcements from Microsoft on availability of EU Data Boundary for the Microsoft Cloud and also the general availability of Microsoft Graph in EU Data Boundary.
Hope this helps.
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