ORA-23398: user name "string" at database

admin

ORA-23398: user name "string" at database link "string" does not matchlocal user
name "string"
Cause: the user name of thereplication administration user at the local node and
the user name at the node corresponding to the database link are not the same.
Symmetric replication expects the two users to be the same.
Action: Ensure that the userID of the replication administration user at the local
node and the user ID at the node corresponding to the database link are thesame.