Field Exit in ME21N -PO

Question

Hi all,
This is related to the Tcode ME21N (PO).
I need to put validations on the fields of Purchasing Document and Item in the above Tcode.These are the fields at the item level in the last two columns.For this I have created 2 Field Exits for the Purchasing Document(Data Element-EBELN and Item (Data Element EBELP).
The problem is that there are 2 Item fields (the first column and the Last Column) of the same Data Element EBELP.Now for both these fields the field exit for the Item gets trigerred, once for each (ie first it has the value from the 1st column and next time it has value from last column).Now my validations are required only for the Last Column entry.
So how do I make out in the logic of the field exit that it has been trigerred only for the Last Column Entry.Can I use the Field name in the screen for Last Column in any way for my requirement.
Your Inputs are appreciated and will be rewarded.
Thanks,
Stock.

Answer 1

see u need to get the entries as
Ebeln        EBELP
12000001   0001
12000001   0002
so if i want to validate on ebeln for item 2 then i need to differentiate it in hte select
12000001 0001
<b>12000001 0002</b> "---> on limit the validation of 2
so i need to feed EBELP in the select statement .
select single EBELN EBELP from EKPO
where EBELN  = P_EBELN
  and EBELP =  P_EBELP
To fetch the right entry u need to reach only that value of ebelp .
Pass the code .
regards,
vijay