A Microsoft file hosting and synchronization service.
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Hello Laurie
Thank you for listing the troubleshooting already completed. Since the problem continues after changing networks, checking storage and permissions, restarting the iPad, and reinstalling OneDrive, repeating those steps is unlikely to help.
You can try resetting the account within OneDrive under Profile > Settings > Account > Reset, then test Make Available Offline with one small file. This reset is separate from reinstalling the app.
If the error remains, the next practical step is to contact Microsoft Support for further assistance:
Please note that this is a user-to-user support forum. Moderators and contributors, including external Microsoft employees, are not allowed to directly interfere with Microsoft product features or access back-end systems. Our role is limited solely to providing technical guidance on reported incidents, requests, or ideas.
- Open a website link - Contact - Microsoft Support
- In the box below "We're here to help", type Microsoft 365, click "Get Help", and then click "Contact Support" below.
- In this section, you will need to sign in to your Microsoft account.
- Select "Microsoft 365 and Office" under Products & Services, select "Technical Support" as the category, and click to confirm
- You can select " Chat with a support agent in your web browser " to access the chat window.
For better support, you can share this information when talking to Microsoft Support:
- The exact OneDrive app and iPadOS versions
- A screenshot of error code 100
- Whether individual files fail as well as folders
- Whether the files are owned by you or located in a shared folder
As a temporary workaround, try downloading urgently needed files individually through OneDrive on the web and saving them locally in the iPad Files app. This will not restore the folder-level offline function, but it may provide local access while the app issue is being investigated.
I hope you can get the support you need.
Have a nice day.