Before you create the Replication Agent objects, you can specify the object name prefix string to be used to name the objects. You can set this prefix string to avoid conflicts with the names of existing database objects in your primary database.
Replication Agent uses the prefix string to find its objects in the primary database. In Replication Agent for Microsoft SQL Server and Replication Agent for UDB, this prefix string is defined by the value of the ra_admin_instance_prefix parameter. In Replication Agent for Oracle, the prefix string is defined by the value of the ra_admin_prefix parameter.
Use the ra_config command to change the value ra_admin_instance_prefix or ra_admin_prefix. If you change the value of ra_admin_instance_prefix or ra_admin_prefix after you initialize Replication Agent, Replication Agent cannot find the objects that use the old prefix.