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

Item Value
SQLCODE -282
Constant SQLE_SUBSCRIPTION_NOT_UNIQUE
SQLSTATE 5RW03
Sybase error code 13644
ODBC 2 State S0002
ODBC 3 State 42S02
Parameter 1 Name of the publication.
Parameter 2 Name of the user.

Probable cause 

You attempted to create a subscription that already exists.