Hi, I am hoping someone can help. I currently have a customer who is having issues with syncing their outlook calendar on MS Teams. I have checked various sources online and cannot seem to find an explanation as to why this is happening. The only advice is things I have done already. I have replicated these fixes on my computer and each one seems to have worked but doesn’t seem to be for this user. Worked carried out: Checked all relevant Outlook Add-ins Tried to add the calendar using the following – Activity> ’+’ > Website > Outlook URL > Sign In (but unfortunately he does not have this option on his machine) Web-based version - only seems to be syncing some of the appointments, but not all Not sure if there is anything else someone can suggest. Is there anything blindingly obvious I am missing? Thanks in advance.

Hello Ryan_K16, Thanks for your post in Microsoft community. Regarding your issue, we would like to suggest you to open Outlook web app and open Teams Online app and check the appointments syncing status. Further from your post, we had observed that Web-version syncing some appointment, do you mean that appointment created from Teams app and some of them are visible in Outlook Web app, if possible , request you to kindly provide us some screenshot for Teams and Outlook Web app, so we can compare the actual scenario. Further for testing purpose, suggest you to create one new test appointment from Outlook Web App and check if its sync on Teams online app or not (you may test vice versa, it helps us to narrow down the issue) If appointment sync has no issue on Online app and issue is just with Outlook client and Teams client app, please check the below suggestions. A. Check your Teams and Outlook app are updated with latest versions. For Teams Client app : To check this : click on your profile picture from Teams app > click on Check for updates (it helps to update your Teams with latest version) For Outlook client app: Go to File > Office Account > Update Options and click on Update Now (it helps to update Outlook with latest version) B. Try to clear Teams cache. Fully exit the Microsoft Teams desktop client. To do this, either right click Teams from the Icon Tray and select ‘Quit’, or run Task Manager and fully kill the process. Go to File Explorer, and type in %appdata%\Microsoft\teams. Once in the directory, you’ll see a few of the following folders: From within ‘Application Cache’, go to Cache and delete any of the files in the Cache location.: %appdata%\Microsoft\teams\application cache\cache From within ‘Blob_storage’, delete any files that are located in here if any.: %appdata%\Microsoft\teams\blob_storage From within ‘Cache’, delete all files.: %appdata%\Microsoft\teams\Cache From within ‘databases’, delete all files.: %appdata%\Microsoft\teams\databases From within ‘GPUCache’, delete all files.: %appdata%\Microsoft\teams\GPUcache From within ‘IndexedDB’, delete the .db file.: %appdata%\Microsoft\teams\IndexedDB From within ‘Local Storage’, delete all files. : %appdata%\Microsoft\teams\Local Storage Lastly, from within ‘tmp’, delete any file. : %appdata%\Microsoft\teams\tmp Once finally done clearing, you can now restart Teams from your local desktop and all cache will be cleared from the desktop app. C. Start Outlook in safe mode (with CTRL + R and type : outlook.exe /safe) and check the result. If it works in Safe Mode, then the is likely to be a conflicting or corrupt add-in. Disable all add-ins and then open Outlook to confirm, if it works then enable add-in one by one until you get to the one which stops Outlook. If the above suggestion doesn’t help, kindly let us know how have you configured your Outlook account (such as Exchange , POP3 or IMAP)? Thanks and regards, Ankita Vaidya

Thank you Ankita, But this is not a serious solution. The expectation is to be able to create a shared calendar in either Teams or Outlook and have it available for anyone we want to share it with. To have to go through the steps above, let alone finding those steps, is completely beyond ridiculous.

Hello Anilita, I am having the same problem with my Outlook and Teams. For some reason the add-in is not working. I have followed all the instructions I have found on the topic and still have not be able to get Teams and Outlook to sync together. However when I check online in the Outlook web app all I can see all my Teams meetings in the calendar. I would appreciate it if you could offer any other advice. Thank you!

Hi Ankita, I have an Exchange 2016 on prem server where my mailboxes reside. Teams Status does not change wrt to outlook calendar. Please let me know how to have this possible.

Thanks Ankita. I will give that a go and get back in touch. Thanks for your help.

Microsoft Teams - Outlook Calendar - Not Syncing

Anonymous

Hi,

I am hoping someone can help.

I currently have a customer who is having issues with syncing their outlook calendar on MS Teams. I have checked various sources online and cannot seem to find an explanation as to why this is happening.

The only advice is things I have done already. I have replicated these fixes on my computer and each one seems to have worked but doesn’t seem to be for this user.

Worked carried out:

Checked all relevant Outlook Add-ins
Tried to add the calendar using the following – Activity> ’+’ > Website > Outlook URL > Sign In (but unfortunately he does not have this option on his machine)
Web-based version - only seems to be syncing some of the appointments, but not all

Not sure if there is anything else someone can suggest. Is there anything blindingly obvious I am missing? Thanks in advance.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

Answer accepted by question author

Anonymous

2020-04-22T01:05:23+00:00
Hello Ryan_K16,

Thanks for your post in Microsoft community. Regarding your issue, we would like to suggest you to open Outlook web app and open Teams Online app and check the appointments syncing status. Further from your post, we had observed that Web-version syncing some appointment, do you mean that appointment created from Teams app and some of them are visible in Outlook Web app, if possible , request you to kindly provide us some screenshot for Teams and Outlook Web app, so we can compare the actual scenario.

Further for testing purpose, suggest you to create one new test appointment from Outlook Web App and check if its sync on Teams online app or not (you may test vice versa, it helps us to narrow down the issue)

If appointment sync has no issue on Online app and issue is just with Outlook client and Teams client app, please check the below suggestions.

A. Check your Teams and Outlook app are updated with latest versions.

For Teams Client app : To check this : click on your profile picture from Teams app > click on Check for updates (it helps to update your Teams with latest version)

For Outlook client app: Go to File > Office Account > Update Options and click on Update Now (it helps to update Outlook with latest version)

B. Try to clear Teams cache.

Fully exit the Microsoft Teams desktop client. To do this, either right click Teams from the Icon Tray and select ‘Quit’, or run Task Manager and fully kill the process.

Go to File Explorer, and type in %appdata%\Microsoft\teams.

Once in the directory, you’ll see a few of the following folders:

From within ‘Application Cache’, go to Cache and delete any of the files in the Cache location.: %appdata%\Microsoft\teams\application cache\cache

From within ‘Blob_storage’, delete any files that are located in here if any.: %appdata%\Microsoft\teams\blob_storage

From within ‘Cache’, delete all files.: %appdata%\Microsoft\teams\Cache

From within ‘databases’, delete all files.: %appdata%\Microsoft\teams\databases

From within ‘GPUCache’, delete all files.: %appdata%\Microsoft\teams\GPUcache

From within ‘IndexedDB’, delete the .db file.: %appdata%\Microsoft\teams\IndexedDB

From within ‘Local Storage’, delete all files. : %appdata%\Microsoft\teams\Local Storage

Lastly, from within ‘tmp’, delete any file. : %appdata%\Microsoft\teams\tmp

Once finally done clearing, you can now restart Teams from your local desktop and all cache will be cleared from the desktop app.

C. Start Outlook in safe mode (with CTRL + R and type : outlook.exe /safe) and check the result.

If it works in Safe Mode, then the is likely to be a conflicting or corrupt add-in. Disable all add-ins and then open Outlook to confirm, if it works then enable add-in one by one until you get to the one which stops Outlook.

If the above suggestion doesn’t help, kindly let us know how have you configured your Outlook account (such as Exchange , POP3 or IMAP)?

Thanks and regards,

Ankita Vaidya
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