BADI ME21 . Adding subscreen.
I used sample code in definition name ME_GUI_PO_CUST and method SUBSCRIBE. and created a new implementation in SE19 with the name ZME_GUI_PO_CUST .
i m getting an error message at a line.
ls_subscriber-name = subscreen1. (Line No 14).
"The field subscreen1 is unknown'.
But in a sample code (i have seen in se18.) when i double click on subscreen1.
it goes to CL_EXM_IM_ME_GUI_PO_CUST (Class interface).