I have added feilds in Addtitional Data B screen on SO,
on a Particular Sales Document Type(ZTAL) I have to Enable one feild called Leasing Duration. in all other cases it has to be disabled or invisible.
How do i do it?
Also please let me know ?
How will i update the table VBAK once these feilds are enterd in the SO Addtitional Data B screen by the user and clicks save....
Should i code my logic for that in PBO .... of SAPMV45A -8309
Or should i go for a User Exit or a BADI