Behavior:
When trying to store using Connect to Outlook, you get the error message,
"The function cannot be performed because the message has been changed"
Solution:
This issue is a general Outlook issue where the following can be tried in order to address this.
- In Outlook, click on File > Options > Mail.
- Scroll down to "Conversation Clean Up"
- Uncheck "When a reply modified a message, don't move the original."
Once the change has been made, restart Outlook then try storing again.
KBA is applicable for both Cloud and On-premise Organizations.