Some stores unable to purchase USPS shipping labels.
Incident Report for Shopify
This incident has been resolved.
Posted Sep 12, 2019 - 15:31 EDT
Some stores are temporarily unable to purchase USPS shipping labels from the fulfillment page in the Shopify admin. Shipping options are working normally for customers at checkout--only the purchase of shipping labels from within the admin is affected.

We’re working on a solution and will keep you updated.
Posted Sep 12, 2019 - 15:17 EDT
This incident affected: Third party services.