When is us Sage US going to get a Barcode translator that will make Sage 50 a POS System? Take a look at this european third party addon :  

"Q-plus
Maintaining the Barcode Database for use with the plus(+) versions of Q-tron Software
Advanced Barcode Database For SAGE 50
All Q-tron Scanning related Products are available in two variants – standard and plus (+). 

In their standard form they will only scan barcoded representations of the SAGE Product Codes. This is ideal in an environment where a product will always be referred to by the SAGE product code. 

In other environments, Retail for example, a product that you purchase from a manufacturer could have several different manufacturer’s barcodes. One reason for this is that they may manufacture the product in different packaging to celebrate a special anniversary or sporting event. To them the products are different but to you they are all the same. Or maybe you purchase the same product from multiple suppliers – each with their own barcode. 

To cater for this, with the plus variant of the software, each SAGE product code can be linked to any number of alternative barcodes. Then, if an alternative barcode is scanned, the software will automatically convert the barcode to the corresponding SAGE product code. 

Q-plus holds and maintains the Barcode Database for use with all Q-products where alternative barcodes need to be referenced against a SAGE product code."