sp_replflush (Transact-SQL)
Applies to: 
SQL Server
Azure SQL Managed Instance
Flushes the article cache. This stored procedure is executed at the Publisher on the publication database.
Important
You shouldn't have to execute this procedure manually. You should only use sp_replflush for troubleshooting replication as directed by an experienced replication support professional.
Transact-SQL syntax conventions
Syntax
sp_replflush
[ ; ]
Arguments
None.
Return code values
0 (success) or 1 (failure).
Remarks
sp_replflush is used in transactional replication.
Article definitions are stored in the cache for efficiency. sp_replflush is used by other replication stored procedures whenever an article definition is modified or dropped.
Only one client connection can have log reader access to a given database. If a client has log reader access to a database, executing sp_replflush causes the client to release its access. Other clients can then scan the transaction log using sp_replcmds or sp_replshowcmds.
Permissions
Only members of the sysadmin fixed server role or the db_owner fixed database role can execute sp_replflush.