Does anyone receive Credit transactions as Deductions for application to AR Invoices?

Rather than short-pay on an AR Invoice to account for a promo deduction (which I believe is standard Oracle processing), our customer prefers to transmit a credit transaction for application to their Invoice.  We are integrated with Oracle Trade Management (OTM) for settling customer claims.  However, Oracle AR is generating a Claim in the full amount of the open Invoice Balance as opposed to the Deduction amount.  Example:  Customer invoice = $100.  Customer submits a deduction for $6 credit.  The negative receipt application causes the AR Invoice balance to increase to $106.  OTM then generates a Claim in the amount