Field Exit for ME21N & ME22N transactions

Question

HI Friends,
I need to make the SAP Standard screen field "Overdeliv. Tol." & "Unlimited" to inactive under the Item level data --> Delivery tab in ME21N & ME22N transaction.
Can i do ths? If so give me the steps and Screen exit for the same...

Answer 1

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.
double click on the exit u can see the Fm exit,screen exit,feild exit,include exit. there
u can check the table MODSAP
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