Scroll down and uncheck the 'When a reply modifies a message, don't move the original' option. To fix the issue, you'll need to disable the conversation clean up options in your email settings. This can cause an error if you try to move or delete a message that has already been deleted by the conversation clean up process. If you see the error message 'the operation cannot be performed because the message has been changed', it's likely that you have the conversation clean up options enabled in your email settings. 0:56 Disable conversation clean up options.0:00 About the operation cannot be performed because the message has been changed.Before the solutions, backup Outlook emails from browser in advance. If the problem persists, follow the details below. To resolve the error, the user should refresh the mailbox view and try the operation again. Fixes - The Operation Cannot Be Performed Because the Message Has Been Changed This can happen in a shared mailbox or public folder, for example, if two users try to modify the same message simultaneously. The error 'the operation cannot be performed because the message has been changed' generally occurs when the user tries to modify or delete a message that another user has already modified or deleted. It will work if I close the message or move to another and then try to move the original message again.' This happens even though I have kept the message the same except to read it. 'The following message often pops up when I try to move an email to a folder. Full stepsĮrror - The Operation Cannot Be Performed Because The Message Has Been Changed In the settings, uncheck 'Scan Outbound Mail (SMTP)'. Full stepsĬlose all the running Microsoft applications.

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