GS1 is the organisation behind the barcode standards used across the food supply chain. A GS1-128 barcode on a case can carry the product's GTIN plus data such as the lot number, pack or expiry date, net weight and country of origin, each marked by an application identifier: (01) for the GTIN, (10) for the batch or lot, (17) for the expiry date, and so on.
For a distributor, scanning a supplier's GS1 label at receiving turns a minute of typing into a scan: the lot, dates and weight come from the label instead of from the receiver's reading of it.
The APFoodz warehouse app reads supplier GS1 case labels at receiving.