Overview

Some users may encounter an 'Object changed' error, specifically the 0x80040109 MAPI_E_OBJECT_CHANGED error , when composing an email for an extended period of time (for example 45 minutes). .

This issue arises due to a conflict between the cached or draft version of the email and the version being actively edited. This conflict is often caused by the Auto-Save feature in Outlook, which automatically saves drafts of emails at a set frequency.

Solution

To resolve this issue, you can either decrease the Auto-Save frequency, disable the Auto-Save feature, or manually manage the drafts to prevent conflicts. Here's how to disable the Auto-Save feature in Outlook:

1. Open Outlook on your computer.
2. Click on the 'File' tab in the top-left corner of the Outlook window.
3. In the File menu, click on 'Options.' This will open the Outlook Options dialog box.
4. In the Outlook Options dialog box, select the 'Mail' category on the left-hand side.
5. Scroll down to the 'Save messages' section.
   
6. Uncheck the box next to 'Automatically save items that have not been sent after this many minutes:' to disable the Auto-save feature.
7. Click on the 'OK' button to save the changes and close the Outlook Options dialog box.

If disabling Auto-Save or otherwise preventing drafts from being used to prevent data loss is not a viable option, a manual workaround would be:

• Copy the mail with the error.
• Close the draft email having the error.
• Refresh the draft email from the server version.
• Merge the copied version with the latest version.

Summary

The 'Object changed' error in Outlook can be resolved by either decreasing the Auto-Save frequency, disabling the Auto-Save feature, or manually managing the drafts to prevent conflicts.

FAQ

1. What causes the 'Object changed' error in Outlook?
   This error is often caused by a conflict between the cached or draft version of the email and the version being actively edited, usually due to the Auto-Save feature in Outlook.
2. How can I prevent the 'Object changed' error in Outlook?
   You can prevent this error by either decreasing the Auto-Save frequency, disabling the Auto-Save feature, or manually managing the drafts to prevent conflicts.
3. What should I do if I can't disable the Auto-Save feature?
   If you can't disable the Auto-Save feature, you can manually manage the drafts by copying the mail with the error, closing the draft email, refreshing the draft email from the server version, and merging the copied version with the latest version.