@Claire Thanks for posting in our Q&A.
To clarify this issue, we appreciate your help to collect some information:
- Please check if there is "Microsoft office" app deployed to the target iOS device in Apps > iOS/iPadOS. If yes, please remove this iOS device from the assignment group and we can uninstall the microsoft office app manually on the iphone.
- If you only want to install Teams and Outlook app, it is suggested to only deploy these two apps to your iphone.
Hope it will help.
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