The specified foreign key (%1) can not be enforced

Error constant SQLE_UNENFORCEABLE_FOREIGN_KEY
ODBC 2 State 23000
ODBC 3 State 23000
Parameter 1 Name of the foreign key.
Severity 16
SQLCODE –729
SQLSTATE 23507
Sybase error code 549
Probable cause

You attempted to create a foreign key that cannot be enforced. In order to be enforceable, the primary and foreign table for the specified key must exist on the same server. You can use the UNENFORCED keyword to create a foreign key specification that is not to be enforced.