Microsoft Office and OneDrive are extremely powerful when used together – particularly for users who rely on cloud storage to collaborate, create backups and access files across devices. However, many users of Microsoft Office for Mac 2016 are encountering a frustrating problem: documents are not synchronising correctly with OneDrive.

Whether you're using Word, Excel, or PowerPoint, the inability to open, save, or synchronise files directly to OneDrive can slow down your workflow and impact file management. This blog provides a step-by-step troubleshooting guide to help you resolve syncing issues, so you can get the most out of your investment in Microsoft Office for Mac 2016 to be able to extract.

Common symptoms of synchronisation problems

Synchronisation errors between Office 2016 and OneDrive typically manifest as follows:

  • Files are not updated after saving
  • Documents cannot be opened directly from OneDrive
  • Error messages such as „Upload failed“ or „Saved locally“
  • Dokumente im Read-only mode plug
  • OneDrive is not appearing in Save as Or OpenMenu
  • Delays in synchronisation or no detection of file changes

Understand cause

The problem usually stems from compatibility issues between OneDrive updates and the older architecture of Office 2016 for Mac. Other possible causes include:

  • Outdated versions of Office or macOS
  • Damaged OneDrive cache or faulty settings
  • Login error or conflicts with tokens
  • File path lengths or special characters
  • Incorrect configuration of the OneDrive folder

Let's systematically go through each solution.

✅ Step 1: Ensure the latest updates are installed

Outdated apps can easily disrupt cloud syncing.

So check this out:

  1. Open a Office 2016 app (e.g. Word).
  2. Click on Help > Check for Updates.
  3. Use Microsoft AutoUpdate, to install pending patches.

Then update OneDrive:

  1. Open the Mac App Store.
  2. Go to the tab Updates.
  3. Update OneDrive, if available.

Why this helps:

Updates include bug fixes and support the latest OneDrive API integrations. Office 2016 will continue to receive critical compatibility updates, even though no new features are being added.

✅ Step 2: Completely restart OneDrive

Sometimes, simply updating the OneDrive client can help.

Instructions

  1. Click on the OneDrive cloud icon in the menu bar.
  2. Choose Settings > Quit OneDrive.
  3. Open Finder → Applications → Launch OneDrive new.

Ensure that OneDrive uses the same Microsoft account logged in is like Microsoft Office for Mac 2016.

✅ Step 3: Clear OneDrive cache

A corrupted cache may prevent OneDrive from synchronising properly with Office.

So you clear the cache:

  1. Quit OneDrive.
  2. Open Finder → Go → Go to Folder.

Enter:
~/Library/Group Containers/

  1. Delete the folder:

UBF8T346G9.OneDriveSyncClientSuite

  1. Restart OneDrive and sign in again.

✅ Step 4: Check filenames and paths

Office 2016 is more sensitive to path lengths and unsupported characters than newer versions.

Recommended

  • File paths short to hold (under 255 characters).
  • Only alphanumeric characters, underscores (_), and hyphens (-) may be used.
  • Do not use slashes, colons, or emojis in the file name.

Avoid:

  • Deeply nested folder structures in OneDrive.
  • Special characters like *, ?, , | in file or folder names.

✅ Step 5: Locally synchronise OneDrive folder

Office 2016 does not work well with Files on demand or placeholders.

Ensure files are available offline:

  1. Open OneDrive settings (via the cloud icon).
  2. Under Preferences > Synchronisation ensure the entire folder is synchronised.
  3. „Disable “Files on Demand" when using macOS Monterey or older.

This ensures that the OneDrive folder fully downloaded locally and can read from and write to Office 2016 without any problems.

✅ Step 6: Use Finder instead of Office

Instead of the option „Open from OneDrive“ to use in Word or Excel:

  1. Navigate to the OneDrive folder using the Finder.
  2. Open files Direct from there.
  3. Save changes as usual.

This bypasses the sometimes outdated OneDrive integration in Office and uses your Mac’s file system instead.

✅ Step 7: Reset the OneDrive link in Office

Manchmal muss man die Reset cloud storage link in Office.

This is how it's done:

  1. Open Word (or another Office 2016 app).
  2. Go to Word > Settings > Save.
  3. Deactivate „Save to OneDrive by default“ and reactivate it afterwards.
  4. Sign out of your Microsoft account.
  5. Close the app, open it again, and log in again.

✅ Step 8: Reset Office login details in the keychain

The macOS Keychain can contain corrupted credentials.

So reset it:

  1. Open Keyring management (search via Spotlight).
  2. Enter in the search field Microsoft one.
  3. Delete entries for:
    • Office identities
    • Cached OneDrive credentials
  4. Restart your Mac.
  5. Please sign in to Office or OneDrive again.

✅ Step 9: Reinstall OneDrive or Office (optional)

If all else fails:

Reinstall OneDrive:

  1. Quit OneDrive.
  2. Move the app to the trash.
  3. Download the latest version from the Microsoft website or the Mac App Store.
  4. Reinstall and log in again.

Reinstalling Office 2016:

Only perform if OneDrive is not the cause.

  1. Remove Office apps from the Programmes folder.

Delete associated folders from:
~/Library/Containers
~/Library/Group Containers

  1. Reinstall from your product source:
  2. Microsoft Office for Mac 2016

✅ Bonus: Use web access for emergencies

If syncing continues to fail:

  • Go to onedrive.live.com
  • Open your file in Office Online
  • Edit and then download

Whilst not ideal, it ensures the ability to work.

How to avoid future OneDrive sync problems

Best Practice Advantage
Keep OneDrive and Office up to date Avoids compatibility issues
Sign in with the same Microsoft account Vermeidet Anmeldekonflikte
Kurze und saubere Dateinamen verwenden Verhindert Speicherfehler
Direkt über Finder arbeiten Vermeidet Probleme mit In-App-Links
Regelmäßig wichtige Dateien sichern Schützt vor Datenverlust

Zusammenfassung der Lösungen

Lösung Wirksamkeit
Beide Apps aktualisieren 🔁 Erforderlich
Neu starten und erneut anmelden ✅ Hilft oft
Cache und Schlüsselbund löschen ✅ Empfohlen
Offline-Synchronisierung prüfen ✅ Wichtig
Dateien über Finder öffnen/speichern ✅ Zuverlässig
Neuinstallation (falls nötig) 🛠 Letzter Ausweg

FAQs

 1. Warum synchronisiert sich Office 2016 für Mac nicht mit OneDrive?

Office 2016 verwendet veraltete Synchronisierungsprotokolle, die nicht immer mit der neuesten OneDrive-Architektur übereinstimmen. Ursachen können veraltete Software, Pfadlängen, Dateinamenfehler oder zwischengespeicherte Anmeldedaten sein.

 2. Kann ich OneDrive 2024 noch mit Office 2016 für Mac verwenden?

Ja, obwohl einige neuere OneDrive-Funktionen möglicherweise nicht vollständig unterstützt werden. Für grundlegendes Öffnen und Speichern funktioniert OneDrive weiterhin gut mit Microsoft Office for Mac 2016.

 3. Unterstützt Office 2016 „Dateien bei Bedarf“?