I want to call the method of the EIS that is connected by my RA. But the method needs the input parameters that when it works. Now i want to know how to transfer the parameters to the EJS. that is: the client side: ConnectionFactory cf = (ConnectionFactory)initCtx.lookup("java:comp/env/eis/EjbFileAdapter"); Connection myCon = cf.getConnection(); myCon.credit(toAccID,amount); toAccID and amount are the input parameters. and in the RA,how to defind it? in MangedConnectionFactoryImpl.java java.lang.String param1=null; Double param2=null; cmt.credit( param1, param2); how to do it? thanks!