Dear Experts, Have written BDC code inside ODATA but getting CONTROL_ERROR as below,how can we escape from this or is there any solution?

Hi Team, My requirenment is to add production order field in 1st screen of MB21. after that i have to add another field in Second screen at item level. I tried many ENh/Exit/Badi but still no solution, also i tried SHD0, via this we can't...