USPS Ground Advantage Shipping Labels & Shopify Order #'s

[BAMFCC]

Am I crazy? I cannot find the order number on the shipping labels for the new USPS Ground Advantage. I am using Shopify to purchase my labels, but I cannot find the order numbers -which is unfortunate since I need to bulk purchase and print and my boxes are labeled by order number. 

Thanks 🙂

[BAMFCC]

**EDIT** Meant to say UPS Ground Advantage, not USPS.