probkup online source-db-name source-db-backup-name -REPLTargetCreation

Note: Once you perform a backup with the -ReplTargetCreation option, you cannot run additional backups or PROQUIET on the source database until the target database has been restored, enabled for target replication, started, and the replication source and agent are synchronized. Multiple source backups before synchronization returns errors 10440, 11696, and 10504 when you synchronize, and you will have to create the target database with a new -REPLTargetCreation backup.