Project Billing - Concession Invoice

Hi,

My query is regarding concession functionality in Project Billing.

Concession Invoice is a Credit Memo reverses the accounting entries of original invoice. Our original Invoice Accounting is

Receivable A/c Dr 100

   To Unbilled Receivable

Concession Invoice will reverse the above entry and Unbilled Receivable will be debited.

1. My query is How to clear the debit of Unbilled Receivable Account? Should we enter negative event to debit revenue and credit Unbilled AR?

2. Concession is type of waive off we are giving to customer. Should we debit it to revenue or some discount account?

Regards,

Kalpesh Sharma