Choose Publication Database
Select the name of the database that contains the data and database object that you want to publish.
The publication database is the database on the Publisher that is the source of data and database objects to be replicated. Each database used in replication must be enabled as a publication database by a member of the sysadmin server role, either through the Configure Publishing and Distribution Wizard, the Publisher and Distributor properties, by using the sp_replicationdboption system stored procedure, or by creating a publication on that database using the Create Publication Wizard.