Have any setup can bring the FA Book default value in AP Invoice Distribution line?

Hi Team,

We use the R12.2.12 version, we face the tow FA book under one OU issue,

(1) LE - A -FA Book A - set in OU A

(2) LE- B - FA Book B set in OU A

Because if AP Invoice distribution line FA book value is null, when run mass addition create the program will assing parameter FA Book to them,

As before the LE-B not too much Invoices, so our user do the manual select FA book value as " FA Book B" in AP distribution, and avoid run with

FA Book A will cause LE-B invoices generate to FA Book A,