Manage Logins and Passwords in Replication
Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Specify the logins and passwords for replication agents when you configure replication. After configuring replication, you can change logins and passwords. For more information, see View and Modify Replication Security Settings. If you change the password for an account used by a replication agent, execute sp_changereplicationserverpasswords (Transact-SQL).