If you create a replication definition for a table at Replication Server, you must create a subscription for that table replication definition at the replicate database. A subscription instructs Replication Server to copy data from primary tables to specified replicate databases.
Similarly, if you create a function replication definition for a stored procedure, you must create a subscription for that function replication definition at the replicate database. However, you do not need to create subscriptions for table or function replication definitions that update primary databases.