Fix 'Your Account Doesn't Allow Editing on a Mac' Microsoft 365

Office Apps - Unable to Edit

Some users reported receiving the message "Your account doesn't allow editing on a Mac. To learn more, contact your admin about your Office plan" after launching one of the Microsoft 365 for Mac Apps (formerly Microsoft Office) on their Mac computer. The app then runs in Read-Only Mode. 

If you are affected by this issue, try this first:

  1. Click the app name in your finder bar (e.g. Word, Excel, PowerPoint) or Launch the app from your Application Finder or Launcher
     
  2. Click Sign Out. If you have multiple accounts linked to your Office profile, you need to log out of all accounts
     
  3. Restart the app, and try to Sign In with your TRU Credentials again. For Staff & Faculty this will be your @tru.ca Email Address and Password. For Student Accounts, use your Office Account username in the format TID@mytru.ca and myTRU Password

If that does not resolve the issue, perform the following steps:

  1. Launch each Microsoft 365 app installed on your Mac, click on the application name (e.g. Word) menu and choose Sign Out. Then quit the application
     
  2. In the Finder, Click on the Go Menu and choose Go to Folder
     
  3. In the box, Type "~/Library"
     
  4. Click on the Group Containers folder
     
  5. Locate the following three files/folders and Drag them to the Trash
     
    • UBF8T346G9.ms
    • UBF8T346G9.Office
    • UBF8T346G9.OfficeOsfWebHost
       
  6. Empty the Trash and Launch an Office App to check if you can now edit documents. You may need to Sign In with your TRU Credentials again. For Staff & Faculty this will be your @tru.ca Email Address and Password. For Student Accounts, use your Office Account username in the format TID@mytru.ca and myTRU Password

If that does not resolve the problem, perform a full removal of Microsoft Office using the instructions from Microsoft here. Once Office is removed, Install it from https://office.com.

A Guide for Installing Office: Microsoft Office365 - Apple macOS Install Guide

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