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Fix SharePoint iOS App Login Errors After a Tenant Change
Question details
The user is unable to sign into the SharePoint iOS app after an organizational tenant change, despite their Microsoft 365 account functioning normally on other devices and applications.
- Product
- SharePoint iOS App
- Device & OS
- iOS
- Scenario
- Attempting to log into the mobile SharePoint application following a Microsoft 365 tenant migration or update.
- Observed behavior
- The sign-in process fails continuously on one specific iOS device, indicating a localized cache or credential conflict from the previous tenant.
Verify that your updated Microsoft 365 account credentials are correct by logging into SharePoint on a web browser before troubleshooting the mobile app.
Reset SharePoint App Data in iOS Settings
Use the built-in iOS reset function to forcefully clear old tenant data and cached credentials from the SharePoint app.
When an organization changes its Microsoft 365 tenant, mobile applications often hold onto outdated security tokens. A standard sign-out might not be enough to clear these hidden credentials.
Swipe up from the bottom of your iOS screen and pause to view open apps, then swipe up on the SharePoint preview card to close it completely.
Open the native Settings app on your iPhone or iPad, scroll down through your list of installed applications, and tap on 'SharePoint'.
Tap 'Reset SharePoint'. On the next screen, toggle on the options to delete stored sign-in credentials and clear account data.
Restart your iOS device. Once booted, open the SharePoint app and attempt to sign in using your new Microsoft 365 account details.
Uninstall and Reinstall the Application
Perform a clean installation to remove stubborn cache files if the in-app reset does not resolve the login error.
Escalate to Your IT Administrator
Contact your organization's IT department to investigate account permissions or mobile device management policies.
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Frequently Asked Questions
Why does SharePoint keep asking me to sign in on my iPhone?
This usually happens when the app's cached credentials conflict with a recent password change or an organizational tenant migration. Using the 'Reset SharePoint' toggle in iOS Settings clears this cache and stops the login loop.
Will reinstalling the SharePoint iOS app delete my documents?
No. Reinstalling the app will only remove the application files from your device. All your documents and site data are securely stored in the Microsoft 365 cloud and will reappear once you sign back in.
What is a Microsoft 365 tenant change?
A tenant change occurs when an organization moves its Microsoft 365 environment to a new domain or infrastructure. This process requires users to authenticate with a new set of organizational credentials, often causing temporary access issues on mobile apps.
How do I access the Microsoft 365 admin center?
Only users with administrator privileges can access the Microsoft 365 admin center via a web browser. If you are a standard user experiencing issues, you must contact your company's IT support team to make account changes.
