Issue Adding Events to Shared Calendar in Microsoft Teams

Hi @Han, Jeong,

Thank you for posting your question in the Microsoft Q&A forum.

To narrow this down, could you please confirm:

1/ Is this the Channel Calendar tab inside a Teams channel, or a calendar added from Outlook?

2/ Does the issue happen for all channels or just one?

3/ Can you see the team’s Group calendar in Outlook on the web and add events there?

4/ Does the Channel Calendar work in the Teams web app but not in the desktop app?

While we're waiting for your answer, here are some steps that you can try right away:

1/ Refresh and clear cache:

• Sign out and back into Teams.
• If it still stuck, clear the Teams cache following this: Clear the Teams client cache

2/ Try Teams on the web:

• Go to https://teams.microsoft.com in a private/incognito browser.
• Check if the Channel Calendar shows events and lets you add one.

3/ Re‑add the Channel Calendar tab:

• In the affected channel, click + (Add a tab) › search for Channel calendar › Add.
• Give it a name and confirm.
  
  

Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, please let us know the answer to the questions above so we can guide you further.

Thank you for your patience and your understanding. If you have any questions, please feel free to reach out. 

I'm looking forward to your reply. 

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