Create encumbrance journal for accrual accounting class. AP_SLA

Hi all,

Our requirement is creating an encumbrance journal for matched invoices "accrue at receipt PO" as the following.

While validating the invoice, will be as.

DR. PO charge account

CR. RFE

while the invoice be final posted, I want to reverse the encumbrance journal as.

DR.RFE

CR.PO charge account

And I create a JLT with accounting class accrual and condition invoice distribution type accrual. But the journal not created.

So how can I generate it?

Thanks.