This error (MigrationPermanentException: We had trouble signing in to this account. Please confirm that you’re using the correct user name and password.) can give you a real headache because the guide from Microsoft is easy to follow and things should’nt go wrong (normally). We’ve got this error for only 1 user while migrating a couple of users from Gmail to Office 365. I have read a lot of blogs saying the same thing and this is as follows:
- Verify your .CSV file is correct with the three standard columns
- Verify your app password
We’ve resetted the password a few times and created a new password after setting up two way auth again but this didn’t solve the problem. My issue was related to a Gmail setting that the specific user had disabled.
Solution
1. Go to the Gmail site using the users credentials
2. Go to settings
3. Click on the POP/IMAP tab
4. Enable IMAP for this mailbox
4a. it can take 1 hour before this setting is active
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