Office 365 Calendar Permissions Not Updating – Problem Resolved

Anurag | Modified: January 12, 2018 | Office 365 | 4 Minutes Reading

Being the topmost email client and having a large number of clients and users that rely on Outlook and Office 365 there is a large number of problem that the user face while using Office 365 account. One of the problems that we would be covering today is Office 365 calendar permissions not updating.

If the user is making the use of the shared calendars in Outlook 2016 then they would find that not all appointments show up in the calendar or they have started disappearing which cause them a data loss and doesn’t allow them to use Office 365 calendar. The reason for this problem is when the user runs the Outlook 2016 in any of the cached modes with Exchange or Office 365 they start facing this type of issue.

Not Able to understand – No problem we will explain in detail why Office 365 calendar permissions not working in Outlook. Get Quick Solution Here – Export Office 365 calendar to Outlook easily.

Office 365 Calendar Permissions Not Working – Explained

Many features of Office 365 enables us accessing Outlook on the web, access to cloud-hosted versions of server provides service of Office application which is more secure. In Office 365 calendars folder are easily shareable to other. In other words, admin share calendars with its users. Office 365 calendar permissions not updating problem comes when the user gets a cached mode-On with Exchange or Office 365. This means the data of Office 365 calendar gets saved to the memory of your system due to which it doesn’t update rapidly. Sometimes even after clearing the cache user gets the same problem of Office 365 calendar permissions not working in Outlook. After this issue user can’t get the idea if the Office 365 calendars are being shared or what all new events are being added.

One of the easiest ways to verify the problem is by log into your Outlook Web Mail and if you can see all appointments in the shared calendars online then the issue is more than likely due to the cache on your Outlook needing refreshing, here are the steps to fix the problem:

  1. Close all instances of Microsoft like Outlook, Skype for Business if it is running
  2. Then open File Explorer
  3. In the address bar up the top copy and paste the following path:
    %USERPROFILE%\AppData\Local\Microsoft\Outlook or open the path if your location of Outlook is different.
  4. Look for Outlook Data File which corresponds to your email account and deletes it and close File Explorer
  5. Open Outlook again and wait for Outlook to resync

You will see the Office 365 calendar permissions not updating problem would be resolved. If this method doesn’t work then you can use this other method as well to resolve this error.

Other Solution to Resolve Office 365 Calendar Permissions not Updating

  1. Open Microsoft Outlook
  2. In toolbar click on File then Account Settings.
  3. Double click on the Exchange Server Account you are using and now in the Advanced tab.
  4. Unselect Use Cached Exchange Mode.
  5. Unselect Download shared folders.
  6. Click OK.

and then Unselect “Use Cached Exchange Mode”. This will automate calendar synchronization. Launch Outlook to fetch live data from the Exchange Server.
This is another method through which you can get Office 365 calendar permissions not working in Outlook error resolved.


The errors like Office 365 calendar permissions not updating or Office 365 calendar permissions greyed out etc. generate in your account then it means that the admin doesn’t give the permission to that particular users for accessing that calendar folder. Therefore, to use that folder you need to contact the admin or need to export Office 365 Calendars to Outlook manually so that you may enable that calendar event in your Office 365 account.