Screen Exit for adding custom fields in Additional Data tab in ME21N

Question

I need a screen exit or whatever other method for adding custom fields to the additional data tab at header level.
I also need a similar exit for adding a filed at item level.
Thanks in advance
Martin

Answer 1

Hello,
1st find badi or exit and then create screen ...and assign the screen group and screen no for that implementation....some steps i can give u i did with SPRO tcode....
please check it for VA02
SPRO u2013 SAP Reference IMG ---  Logistics General --- Basic partner u2013 customers -- Control u2013 Adaption of customers own masters data element u2013 prepare modification of customer free enhancement of customer master record
1)Screen group                                  description
        zs                                           creating badi      --- (save)
       click on (label tab pages) u2013 new entries
       number u2013 10 , function code u2013 zs10 ,  description u2013 func ---(save) u2013(back)
2)select (FM_CUSTOMER_ADD) u2013 copy
     Implementation name u2013 ZAS
     (desc u2013 impl for cust) u2013 (save)
    interfaceu2014(check_add_on_active) double click on it
3)the above screen appear --  write the code in it u2013 (save) --- (activate) u2013 (back) u2013 (save)
     -- (activate) u2013 (back)
   Business adds in customer sub screens
4)select (FM_CUSTOMER_ADD) u2013 copy
     Implementation name u2013 ZAS1
     (description -- cust) u2013 in attribute u2013 (give screen group name)
5)go to interfaces (GET_TAXI_SCREEN)  double click on it
   (save)  --- (activate) 
6)(SAVE)  -- 
    Goto SE38  -- CREATE PROGRAM WITH NAME (ZQW) type module pool
     Goto SE51  -- Prog : ZQW
       Screen : 200 (Create)
      Goto layout u2013 design the screen
7)save u2013 activate
   then goto transaction : va02
For User Exit's
goto to tcode->status->program name->double click on that,
then goto to-> attribute take the package name and
Goto SMOD tcode ->Utilities->give the package name and F8
then a list of exits will display for that tcode as well as that package.
u can check the table MODSAP
u can check the table MODACT
For BADI's,
1)goto to tcode SE24 give the CL_EXITHANDLER and display and then double click on the GET_INSTANCE
keep Break point at this location 'call method cl_exithandler=>get_class_name_by_interface'
then the tcode it will trigger there and we can debugg there we can find badi'for that tcode and then remove the break point.
2)Goto to tcode->status->program name->double click on that program will display's
then  press crtl+F then cl_exithandler
Thank u ,
santhosh