Shipment Tracking Number in Return Sales Order

Hi,

I would like to know in Return Sales Order, is it possible to have Shipment Tracking Number field that allow users to input manually in order to produce valuable report of return goods? Since standard SAP in Return Sales Order does not have the field to let users to input Shipment Tracking Number during receive of return goods from customer side.

The only idea/solution that I can think of is through TEXT fields in Sales Header Level which allow user to key in the Shipment Tracking Number for the return goods.

Thanks and Regards,

Jimmy