Is there a way to set the receiving cost as zero for over-receipt qtys?

Hello,

Our case is that we have a PO with some direct lines (Description based lines - Not defined in item master).

For a specific line, the vendor delivered qty greater than the ordered qty and this additional qty is with zero cost. We have over receipt tolerance set to 0% and over receipt action "Warning" so the system will allow over receipt and we also have 4-way matching and I believe that receiving additional qty shouldn't cause issues in the payment of the original qty but accounting will be created including the cost of the additional qty which is not accurate.