Android Smartsheet App - loop when logging in

To fix the infinite login loop when using Microsoft SSO (Entra ID) on the Smartsheet Android app, you need to break a cached or corrupted token handshake between the Smartsheet app, your default mobile browser, and the Microsoft authentication app

1) Remove the Cached Microsoft Account from Android Settings

1. Open your Android Settings app.
2. Navigate to Accounts & backup
3. Locate and tap on your corporate/work Microsoft account.
4. Select Remove Account. (Note: This will not delete your data; it simply clears the cached sign-in state on the device).

2) Clear App Storage for Both Smartsheet and Your Default Browser

The Smartsheet app relies on an Android system component called WebView (tied to your default browser, usually Google Chrome) to handle Microsoft's web-based SSO screen. Clearing only the Smartsheet app is usually not enough.
1. Long-press the Smartsheet app icon -> tap App Info (the "i" icon).
2. Tap Storage & Cache -> Select Clear Storage (or Clear Data) and confirm.
3. Long-press your default browser app (e.g., Chrome) -> tap App Info.
4. Go to Storage & Cache -> Manage Space -> Clear All Data.

3) Clear Cache in Microsoft Authenticator

1. Go to Settings -> Apps -> Microsoft Authenticator.
2. Tap Storage & Cache and select Clear Cache.
3. Force stop the app.

4) Restart the phone and add the account back into Smartsheet

1. Reboot your Android phone to ensure all background identity processes reset completely.
2. Open the Smartsheet app.
3. Enter your corporate email address and tap Continue.
4. Select Sign in with Microsoft or your company account button when prompted.
5. Allow the browser redirection to smoothly pass the authentication token back to the Smartsheet app.