An EJB exists on the application server that takes a user-defined object as one of its method parameters.

An adapter service has been configured from the CreateInvokeEJB 2.1 or FetchInvokeEJB 3.0 adapter service template for the desired EJB, including the method used for creating the bean and the bean method to invoke (that is, the method that requires the non-standard object).

You will provide all method input parameters at runtime.

Except as noted above, all other method input parameters and return values have types that are recognizable in Designer.