What is Shipping documents for goods?

Papers that travel with a cargo crossing the border and confirm the transaction and the fact of carriage. The Customs Code divides them into two types: commercial documents and transport documents. Commercial documents include the invoice, the dispatch note, the packing list and other documents proving that a transaction concerning the movement of the cargo across the border has been concluded. Transport documents include the bill of lading, the waybill or another document confirming the existence of a contract of carriage and accompanying the cargo during carriage. Put simply: a commercial document answers the question "what was bought, from whom and for how much", while a transport document answers "who is bringing it, by what means and to where".

Source: Bojxona kodeksi, 9-modda