AR Invoice SLA Business flow with Same entry - how does it work?

Hi,

For example standard AR invoice accounting is as follows:

1. Dt AR                    100$

2. Ct Revenue            80$

3. Ct VAT Payables      20$

As per statutory requirement I need add two lines:

1. Dt AR                    100$

2. Ct Revenue           80$
3. Ct VAT Payables   20$

4. Dt Revenue VAT   20$

5. Ct Revenue           20$

I created new JLTs for lines 4 and 5 by copying JLT from line 2. So new lines 4 and 5 have Revenue nature, based on Revenue JLT. In JLT for line 4 I changed side from Ct to Dt.

I attempted to use business flow with same entry option for JLT in line 4 hoping that it inherits Revenue GL account from line 2. But it doesn't work.

My question is how does JLT with business flow (same entry) work? How does Oracle establish the corresponding JLT when using business flow with same entry option?