ABAP OO BOR export parameter
I am beginner at ABAP OO in workflow and get a problem with using BOR in OO methods. Exporting parameter of the method typed as OBJ_RECORD. In workflow builder (method container) this parameter displays as reference to BOR, but has not exact type of the BOR. Task container parameter has not type of BOR too.
If i trying to change task or method container parameter - system returns it back and not saves binding.
I need instructions, how to mount BOR type for method parameters.