Within ecomdash you have the ability to generate bar codes for your products on the Inventory Management screen. The value of the bar code can be your SKU or your UPC.
To change which value it defaults to you can follow the instructions below:
1. Navigate to Administration -> Settings.
2. You will see a drop down under the bar code options. You will select from the drop down which option you want your bar codes to generate off of.
3. Click 'Save'.
From there you should be all set to see your bar codes generate with the new setting you have selected.