Just after subsequent all steps configuration. I are not able to login to zimbra admin panel with new password or previous password admin. You will need to disable the zimbraMailboxMoveSkipBlobs and zimbraMailboxMoveSkipHsmBlobs characteristics on the resource(NG) server right before initiating the account migration. For extra steering, have a look at https://knoxlcobl.evawiki.com/8849337/zimbra_migration_for_dummies