Amazon Seller Invoice & Procurement Requirements for Authenticity

'Purchase invoice': It is recommended that the seller must issue an invoice when purchasing goods, because invoices can best reflect the authenticity of the seller's supplier chain and product. The product name on the invoice must be consistent with the products sold in the store. The quantity on the invoice must match your account inventory or FBA shipment volume. The buyer's information on the invoice must be consistent with the company information in the Amazon account background.

'Procurement channels': Procurement channels should come from legitimate factory channels.