Procedure in use by '%1'

Item Value
SQLCODE -215
Constant SQLE_PROCEDURE_IN_USE
SQLSTATE 42W23
Sybase error code 3702
ODBC 2 State 40001
ODBC 3 State 40001
Parameter 1 Name of user.

Probable cause 

You attempted to DROP a procedure that is being used by other active users of the database.