How to Get Outlook Web Calendar to Sync Outlook Windows Calendar Again

Question

Using Outlook 365 app on Windows 10 laptop. Can also log into MS 365 (Outlook) on the web.

Outlook Windows and Web had previously been syncing perfectly.

Then Windows Outlook app got Conflict Errors when updating a particular Outlook calendar meeting.

Used CLEAR OFFLINE ITEMS (twice). That caused all calendar appointments to disappear from Outlook Windows calendar.  They do still exist in Outlook web-calendar.

Tried UPDATE FOLDER (multiple times) on the Send/Receive tab on Windows calendar. Did not bring back appointments.

Is there another way to get Outlook web-calendar to update/sync Outlook Windows-calendar?

Answer 1

Hi @Cathy Sim

Welcome to our forum!

For better research, please provide more details about this case:

What is your account type (POP/IMAP/Exchange)?

What is the Outlook client version? Please make sure to update to the latest version.

What are the specific error messages?

Here are a few things you can try to sync your Outlook web calendar with your Outlook Windows calendar:

• Configure the email account as an Exchange account.
• Reset view settings: Sometimes, resetting view settings can help. Go to View > reset the view.
• Download and run the Microsoft Support and Recovery Assistant tool.

Also, based on my search, there is a related known issue here, which is currently being investigated by the official team, so please be patient and wait for the next update.

Thank you for your understanding and patience!

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