What Immediate_sync means in Transactional Replication José Moreira Neto Microsoft SQL Server Escalation Services sp_addpublication parameter: [ @immediate_sync=] ‘immediate_synchronization’ Immediate_sync has a default of FALSE. independent_agent must be true for immediate_synchronization to be true . Immediate_sync feature instructs Replication to maintain Snapshot BCP files and distributed transactions in the Distribution database should a new subscriber be created (or reinit) within the Retention period. By default, this information is purged as soon as existing subscribers receive the transactions. By keeping the Snapshot and transactions for hours or days, new subscribers can 1) Use old snapshot files, and 2) apply all pending changes since the snapshot. New Subscribers (or reinit) would not need to have a “fresh” snapshot generated. IF TRUE If true , the synchronization files are created or re-created each time the Snapshot Agent runs.