How to Stop Outlook Meeting Invitations from Using the Offline Calendar
Question details
The user needs to prevent accepted Outlook meeting invitations from automatically saving to an IMAP 'This computer only' offline calendar instead of their primary intended calendar.

- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Accepting meeting invitations in Microsoft Outlook with an IMAP account configured.
- Observed behavior
- Accepted meeting invitations are saved to an offline or 'This computer only' calendar instead of the user's intended default calendar.
Ensure your Outlook application is fully updated and identify which email account's data file you want to use as your primary calendar destination.
Change the Default Data File in Outlook Account Settings
Setting the correct data file as your default ensures that accepted meetings are stored in your preferred calendar instead of the IMAP offline calendar.
When using an IMAP account, Outlook often creates a local data file with 'This computer only' folders for calendars and contacts. If this file is set as your default, all incoming meeting requests will be saved there. You can resolve this by changing the default data file to the one that contains your preferred calendar.
Launch Microsoft Outlook, click on the 'File' tab in the top-left corner, click the 'Account Settings' button, and select 'Account Settings...' from the drop-down menu.
In the Account Settings dialog box, click on the 'Data Files' tab to view all the data files currently associated with your Outlook profile.
Locate and select the data file that contains the calendar where you want your accepted meeting invitations to be stored (usually your primary Exchange or Outlook.com account).
Click the 'Set as Default' button on the toolbar above the list. A checkmark will appear next to the selected file.
Close the Account Settings window and restart Microsoft Outlook for the changes to take effect.

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Frequently Asked Questions
Why does Outlook say 'This computer only' for my calendar?
This occurs when you set up an IMAP email account in Outlook. Because the IMAP protocol only synchronizes emails, Outlook creates a local data file for your calendar and contacts that cannot sync with the mail server, labeling them as 'This computer only'.
How do I backup a 'This computer only' calendar?
To prevent data loss, you must manually export this calendar. Go to File > Open & Export > Import/Export, choose 'Export to a file', select 'Outlook Data File (.pst)', and then select your specific 'This computer only' calendar folder to save a backup.
Can I force Outlook to save meetings to my Exchange calendar instead?
Yes. By navigating to File > Account Settings > Data Files, you can select your Exchange data file and click 'Set as Default'. All future meeting invitations will then be saved to your Exchange calendar instead of the IMAP offline folder.




