COGS COPA drop ship

In a drop ship scenario, there are 3 parties involved, seller, inter-company supplier and the customer.

During goods receipt, the accounting entry will be generated in the seller's book:

Dr COGS (A)

Cr GR/IR clearing (B) (amount seller pay to interco supplier)

Cr freight reimbursement (reimbursement amount that seller pay to interco-supplier)

When the seller bills customer, in the seller's book, the COPA will be created together with the normal FI billing document. The GR/IR clearing amount (B) is the COGS in COPA. However we expect the COGS (A) as the COGS in COPA.

Are there any solution in the configuration or user exit?