As of today, we can't change the name of iOS devices (supervised) in Microsoft Endpoint Manager.
Is this a know issue?
@JohannesvanKeimpema-7723 Thanks for posting in our Q&A.
For this issue, I have observed that other people have met this issue. With Q&A limitation, it is suggested to create an online support ticket to get the root cause and find if there is any method can fix it from background. It is free. Here is the support link:
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It's fixed indeed.
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