After migrating meetings from Notes to Exchange, you may not be able to edit or delete the meetings. For instance, you may not be able to add new users to attend the meeting.
The target address in the userstomigrate.tsv file of the user that owns the meeting request may be a different address that is shown for that user in the addresstranslation.tsv file.
When the target address of the userstomigrate.tsv file is different than the Target Address of the addresstranslation.tsv file, any meetings that get migrated to the target for that user may come across as read only and not allow any edits. This discrepancy between the target addresses causes Notes Migrator to believe that the user is not the true owner and will not set the appropriate rights to edit the meeting.
The resolution for this is to edit the addresstranslation.tsv file so that the Target Address field is the same as the user list that you are migrating with.