Subscription to '%1' for '%2' already exists

Error constant SQLE_SUBSCRIPTION_NOT_UNIQUE
ODBC 2 State S0002
ODBC 3 State 42S02
Parameter 1 Name of the publication.
Parameter 2 Name of the user.
Severity 16
SQLCODE –282
SQLSTATE 5RW03
Sybase error code 13644
Probable cause

You attempted to create a subscription that already exists.