Fixing Microsoft Office Sign-In After the Account Migration
If Microsoft Word or another Office app on your Android phone or tablet won't sign in with your new @students.sbts.edu account, the app is likely holding on to your old login. Resetting the account inside Word clears it.
⏱️ About 5–10 minutes🤖 For Android phones & tablets🔐 Have your new @students.sbts.edu password ready
Why you're seeing this
The Microsoft Office apps on your Android device store a saved copy of your account login. After your Microsoft 365 account was migrated, the apps may still be using the saved login for your old account — which produces a sign-in error (often AADSTS50020). Resetting and re-adding the account clears the old login so you can sign in cleanly with your new account.
A note on menu names
Android looks a little different across brands (Samsung, Google Pixel, Motorola, etc.). The labels below match most devices, but the wording may vary slightly — for example, “Clear storage” is called “Clear data” on some phones, and Settings → Apps may read Settings → Apps & notifications → See all apps. The location and purpose are the same.
About the pictures
The images below are generalized illustrations of the Android screens, using placeholder names like [Your Name]. Your real screens will show your own details and may look slightly different by device, but the options are the same.
1
Reset your account inside Word
Open the Word app.
Tap your profile picture (or initials) in the top-left corner.
Tap Settings (the gear icon ⚙️).
Under Accounts, tap your @students.sbts.edu account.
Scroll down and tap Reset account. Confirm if asked.
Generalized view: profile picture → Settings → your account → scroll down → Reset account.
2
Remove the account, then re-add it
In that same account menu, tap Remove account. Confirm if asked.
Close Word completely: tap the Recent apps button (the square or the swipe-up-and-hold gesture), then swipe the Word card away to close it.
Reopen Word.
Tap Add account and sign in with your updated @students.sbts.edu Microsoft 365 credentials.
If it signs in cleanly, you're done. No need to do Step 3.
Heads-up.Clear storage removes Word's local data on this device, including any documents saved only on the device and all sign-in info. Files saved in OneDrive are safe and sync back after you sign in. Save any device-only documents to OneDrive first.
Open your device Settings app.
Tap Apps(on some phones: Apps & notifications → See all apps).
Find and tap Word in the list.
Tap Storage & cache.
Tap Clear storage(may be labeled “Clear data”), then tap Clear cache.
Reopen Word and sign in again with your @students.sbts.edu account.
Generalized view: Settings → Apps → Word → Storage & cache → tap Clear storage and Clear cache.
Have other Office apps acting up? You can do the same thing for Excel, PowerPoint, Outlook, or OneNote: Settings › Apps › [App] › Storage & cache → Clear storage & Clear cache, then reopen and sign in.
That should do it. Word will start fresh and sign in with your new @students.sbts.edu account.
Quick help
What does the AADSTS50020 error actually mean?
The app tried to sign you in with the saved login from your old Microsoft 365 account, which no longer exists in the SBTS tenant. Resetting/removing the account and signing in fresh lets the app use your new account instead.
Will I lose my documents?
“Reset account” and “Remove account” don't delete your files. “Clear storage” (Step 3) removes copies stored only on the device, but anything in OneDrive is safe and syncs back after you sign in. Save any device-only documents to OneDrive first.
I don't see “Reset account” in the Word settings.
Make sure the Word app is up to date in the Google Play Store, then reopen it. If you still don't see it, skip to Step 3 (clear storage & cache), which accomplishes the same reset.
Quick recap
Steps 1–2: in Word, tap your profile → Settings → your account → Reset account, then Remove account → close Word → reopen → Add account and sign in.
Step 3 (if needed): device Settings → Apps → Word → Storage & cache → Clear storage + Clear cache → reopen and sign in with your @students.sbts.edu account.