The Shipment Tracking number search in sales/invoices is pretty awesome in the invoice list search.
BLUF: It would be incredibly useful for Tracking Number fields and searches to be available for RMAs. We have particular interest in having incoming and outgoing Tracking Numbers (and search) as a new field for sales/invoices/RMAs.
For example, we had an incoming RMA for which the Freight Forwarder gave us their House Air Way Bill (HAWB) and billed us. We collected the costs to the repair quote/work order but had no way to add the HAWB to the RMA or the receiving PO for the shipment to us. When the customer subsequently paid for the bill and we got a credit from the Freight Forwarder, there was no way to look up the HAWB and to correctly apply the credit to the RMA and repair quote.
We do not want to add the HAWB to the repair quote (in the tracking number field) as it would confuse both us and the customer since the HAWB on quotes are reserved for outbound shipments to the customer.