Oracle Subledger Accounting (SLA)：How can I get the previous account when I applied an receipt?

Hi,

As below is my setting:

Application:Receivables

Event Class:Receipt

Journal Line Type: Unapplied Cash

Account Derivation Rule:

                                    All segment : Remit Bank Unapplied account

                                    Inter-company: derive from customer (customization)

The steps:

Firstly, I created a receipt and choose  customer A. The account generated is as below:

Line 1 Dr  account1. 0                         ---CASH

Line 2 Cr  account2. Intercompany 1    ---UNAPPLY

Secondly, I change the Intercompany account in cumstomer A  from Intercompany 1 to Intercompany 2

Thirdly,

I applied an invoice.The account is as below

Line 3 Dr  account2. Intercompany 2    ---UNAPPLY

Line 4 Cr  acoount3. Intercompany 2    ---RECEIVABLE

So I got the problem the Intercompany in Line2 is different from Line3, however, which suppose to be the same.