We have to provide additional field and some extra validation on Std SAP RF transaction LM51 for Physical Inventory Count. There is one screen exit in enhancement MWMRF151. Created a sub screen with screen # 7151 by copying the original screen 151 under the exit program SAPLXLRF and modified with the new reqt. Created a project for this enhancement and activated the same. In the configuration (SPRO)under Mobile Data entry - screen management queue assigned this screen 7151 as actual screen with variant 1 to the logical screen 151.
In Tx:LM00, keyed the variant '1' and saved the menu screen. From menu management I am getting this new screen but I am not getting the functionality of the original LM51 when i key in the storage bin etc.. Since in sub-screen I can not have ok_code,I guess I am missing the functionality and link to the original screen logic.
I appreciate, if any one can suggest me the solution for this issue. We are using ECC 5.0