Shouldn't pick for creating accounting

Hello All,

In our organisation we have one customization for receipt level descriptive flexfield.

Normally how it will work : once created receipt with event , and event edition values in descriptive flexfield. while run the creating accounting program system will pick code combination from event , event edition.

Ex: Event is 10, Event Edition is 20, so here code combination will be 10.20.account number like this.

If there is nothing system automatically will take some other values .

Our requirement: once completed AP/AR Netting batch receipt will create automatically . After user will give manually event & event edition before run creating accounting program as of now.