Issue
Office 365 migration fails - Error: MAPI Message Store Open Entry --Error code 80040107
We are performing a migration from Domino to Office 365 (O365).
The issue is in the middle of the migration. The log file content is:
! 21:02:49 Error: MAPI Message Store Open Entry --Error code 80040107
@ 21:02:49 Error opening TopFolder (80040107)
! 21:02:49 Error: Critical Failure while creating folder:
<USERNAME> -- Documents: 474 Processed: 0 Skipped: 0 Failed: 0
Done migrating <USERNAME>
<USERNAME> Migration Failed
Apparently the process could not create the personal folders. Only the user mail system folders were processed.
Notes Migrator will fail with the above error as soon as it gets to a folder which does not exist in the destination mailbox.
Solution
This issue is caused by the version of Outlook installed on the migration workstation(s). It looks like the issue was caused by the activation of Outlook connecting to the Office 365 site, automatic updates, upgraded the Outlook Professional version to Office 365 Pro Plus version. This is not a supported version. Only Outlook Professional is currently support. Click To Run is not supported at this time.
Note: A future release of Notes Migrator will support Click To Run.
Uninstall Outlook
Reboot
Install Outlook per our product's requirements documentation
Delete any and all MAPI profile documents.
Create a new MAPI profile document
Disable cache mode
Confirm Outlook is the default Mail program
Start migrations
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