How to change target address in MNE database.
1- On the MNE Export Notes Directory Screen, select the Export Objects To TSV.
2- Save this TSV file locally.
3- Open the TSV file with Excel.
4- Modify the 'TargetAddress' column of the user to match their Exchange email address. This can be a primary Exchange email address or a proxyAddress.
5- Save the TSV file.
6- On the MNE Export Notes Directory Screen, select to Import Objects from TSV.
7- Navigate to the TSV file you just edited and import it back into MNE.
8- Try starting the migration process again on the MNE Migrate User Data screen.