e-label - Editor - QR Code - Custom URL Identifiers - Enterprise

Here are the Steps:

Option 1 - System-Generated URL

Option 2 - will add the product's SKU (provided it only contains alphanumeric characters, underscores (_), and hyphens (-) )

Option 3 - allows you to create your own unique ID (between 8 and 36 alphanumeric characters, underscores (_), and hyphens (-) )

If you have already generated a code, you can still change it (IF YOU HAVE NOT PRINTED IT YET)