I searched many SCN links but couldn't find any solution for this. Below is relveant link but i am not able to understand it correctly:
I have developed a custom screen and it is triggered using standard screen pushbutton.
PBO and PAI Function modules are configured in SPRO.
Custom Screen 900
PBO : MODULE STATUS_SSCR .
I have fields GV_HUNIT and GV_MATNR on custom screen and I want to pass display some value in GV_HUNIT and get GV_MATNR entered by user.
I am trying to write code using GV_HUNIT and GV_MATNR but it gives error that GV_HUNIT and GV_MATNR does not exists.
Do i need to pass any parameters in PBO and PAI FM interface.
Also I am getting error - E: Function code not defined for flow; when I navigate using custom screen.
Am my missing some thing. Please help.