Fix Office Lens Repeatedly Requesting Sign-In on iPhone
Question details
The user is experiencing continuous prompts for Microsoft account sign-in and privacy agreements every time they try to use the Office Lens app on an iPhone.
- Product
- Microsoft Office Lens
- Device & OS
- iPhone (iOS)
- Scenario
- Saving scanned documents directly to cloud services like OneNote or OneDrive via the Office Lens application.
- Observed behavior
- The application repeatedly asks the user to sign in to their Microsoft account instead of retaining their login session, which constantly interrupts the scanning and saving workflow.
Ensure your iPhone's operating system is up to date and verify that your Microsoft account credentials are functioning correctly on other Microsoft services.
Export Scans to Local Storage as PDFs
Bypass the sign-in loop by saving your scanned documents directly to your iPhone's local storage and uploading them to OneDrive manually.
Older versions of the standalone Office Lens application may struggle to maintain a stable authentication token with modern Microsoft cloud services, causing repeated login prompts.
Signing out entirely and using the app as a guest allows you to continue using the scanner functionality without the intrusive privacy and sign-in requests.
Open the Office Lens app, tap on your profile icon or settings menu, and select 'Sign Out' for all connected Microsoft accounts.
Use the camera to scan your physical document as usual and tap 'Done' to proceed to the save options.
Instead of selecting OneNote or OneDrive, choose to export or save the scan as a PDF to your iPhone's local 'Files' app or 'Photos'.
Open the OneDrive app separately, tap the '+' icon, select 'Upload', and choose the PDF you just saved from your local storage.
Use Built-in Microsoft 365 Scanning Features
Switch to the scanning feature integrated into the main Microsoft 365 app, which maintains better connection stability.
Try WPS Office for Built-in Document Scanning
If the standalone Office Lens app is experiencing persistent sign-in bugs, consider switching to WPS Office. It provides a robust, built-in mobile scanner that lets you seamlessly capture, convert, and save documents to PDF without frustrating login loops, serving as a powerful and free alternative to the Microsoft ecosystem.
- 1. Open WPS Office: Launch the WPS Office app on your mobile device.
- 2. Access the Scanner: Tap the '+' icon or 'Tools' menu and select 'Scanner' to activate your camera.
- 3. Scan and Save: Capture your physical document, adjust the borders, and export it directly to PDF or cloud storage effortlessly.

Frequently Asked Questions
Why does Office Lens keep asking me to sign in on my iPhone?
This issue is typically caused by a synchronization bug where the standalone Office Lens app fails to retain its authentication token, or because the older app no longer communicates reliably with modern Microsoft 365 background services.
Can I still use Office Lens without signing in to a Microsoft account?
Yes, you can use Office Lens while signed out. However, you will be restricted to saving your scanned documents directly to your iPhone's local storage (like the Files app or Photos) rather than syncing them automatically to OneNote or OneDrive.
Is the Microsoft Office Lens app being discontinued?
While the standalone app still exists, Microsoft has integrated its core scanning functionality directly into the main Microsoft 365 app and the OneDrive mobile app. The standalone app receives fewer updates, which can lead to stability and login issues over time.




