User Exit MV45AFZZ

Dear Expert,

I am writing my code in user exit MV45AFZZ for T-code VA41 ( Contract Creation ). Now the thing is I want to hit the database table

on the basis of values I am getting in the user exit and I am getting 2 work areas at run time during enhancement being called in VA41 namely

vbak and

xvbak

Now I am confused that which work area should i use to fetch the entries from from the database table i.e. which work area's field should I pass in the database table to get the data from the table.

Please Guide..