Does anybody knows the difference between items "identifiers" and item cross reference "barcode"
I would like to use barcode scanning in a cash & carry outlet shop where the can scan the barcode of the goods
to register on a sales order.
For a shop, it's better to use bar code cross references.
Item identifiers are only required for ADCS in warehouse: https://docs.microsoft.com/en-gb/dynamics-nav-app/warehouse-use-automated-data-capture-systems-adcs
This information is very specific for this functional area, while cross reference codes will be carried over to all your sales and purchase documents.