my teams calendar app has disappeared and the provided suggestions to restore it through administrator access and global policies doesn't work

Question

My calendar has disappeared and the below advice doesn't do the trick, any other options/suggestions? Everybody else in our organisation does have the calendar app in their account, mine disappeared a few days ago for no apparent reason...

Someone from your organization might have changed the settings and accidentally removed the calendar app for your team.To fix the issue, you need to have an admin access for your team. Follow this guide to turn on the MS Teams calendar again.

• Sign in to Microsoft Teams Admin Center as a Microsoft Office 365 administrator.
• On the left corner of the home screen, click Users, and choose your account.
• Select the Policy tab for your account.
• Go to Global (Org-wide Default) under the App setup policy section to show the list of apps.

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• Click the Add Apps button and select the Calendar app.
• Restart your MS Teams desktop client to see the Calendar tab.
• Ask everyone in your team to do the same.

Answer 1

Is the below statement True? Teams Quick meeting and Calendar feature works only if the user mailbox hosted in Office365 cloud. Currently all our company users mailboxes are hosted in on-premise and not integrated with Office 365 completely.

Answer 2

Hi @Tom Ruijs

The Calendar Tab in Teams requires access to an Exchange mailbox via Exchange Web Services. The Exchange mailbox can be Online, or On-Premises. For Online users who do not see the Calendar Tab, make sure they are licensed for an Exchange Online mailbox and the mailbox is enabled. If your users are homed On-Premises, you need to confirm that your Hybrid configuration is healthy. Use the Hybrid Configuration Wizard to troubleshoot. Note that Teams requires Exchange 2016 CU3 or higher.

For more information and troubleshooting steps, see Troubleshoot Microsoft Teams and Exchange Server interaction issues. Also, please run the following tests to resolve other troubleshooting issues.

Run Test: Microsoft Teams Calendar Tab Test.

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Answer 3

Hi all,

Had the same problem with only one user in my company (we use Microsoft 365) and dug for about 2 hrs to find the solution.

I had a user that left the company, kept him in the system for a while to allow others to use his account on behalf of (but with changed password and all Exchange/pop/imap/login/.. diabled). Then it just happened that the user returned and had activated back his account, all in good order except for the pesky calendar button in teams.

I have followed the instructions from various posts (eg https://answers.microsoft.com/en-us/msteams/forum/all/microsoft-teams-essential-calendar-is-missing/13ac3076-0d26-4546-af78-6041bc07efff https://answers.microsoft.com/en-us/msteams/forum/all/calendar-icon-not-showing-in-teams/a3b49446-c1f9-4a12-b3f7-6c2e7b65e062 , this post and few others), which can be summarized to:

• check that user has license for Exchange online (in my case it wasn't there, probably removed automatically when cutting his Exchange access)
• check that Calendar app is enabled in the default Global policy of Teams (checked).
• check that the user is using/has applied this Global policy (checked)
• log out and back in, waiting a day, forcibly log him out from the admin center etc.

However, it wasn't sufficient, the user still had no calendar appearing in Teams, be it via the browser or in the app.

Then I discovered that the user was not part of the default "all@..." group that is created when creating the Microsoft 365 tenant (you cand find this in both Microsoft 365 Admin center and the Exchange admin center).

Adding the user back to this group, followed by a logout/login in teams, solved the issue.

(Not sure if I removed him from this group when he left -- I would say no, because I found him still in other groups -- or the system removed him automatically from it when cutting Exchange/pop/imap/disabling login/...)

Anyway, hope this helps someone.

Answer 4

I am also having the same issue. I have followed the following steps below:

https://answers.microsoft.com/en-us/msteams/forum/all/microsoft-teams-essential-calendar-is-missing/13ac3076-0d26-4546-af78-6041bc07efff

https://answers.microsoft.com/en-us/msteams/forum/all/calendar-icon-not-showing-in-teams/a3b49446-c1f9-4a12-b3f7-6c2e7b65e062

And had the end user clear their teams cache.

This particular end user is using a samsung zfold 3 mobile device.

Still no luck

Answer 5

Hi!

Try to create a new item in the calendar, sometimes the service starts with the first appointment,

Rgds