We are currently experiencing an issue with our integrated USPS shipping calculator that may result in your customers being unable to select a shipping service at checkout, and as a result they may be unable to complete a purchase. This may occur if USPS is the only shipping option you offer, or if USPS is the only valid shipping option available due to the customer’s address or the dimensions/weight of items in the order.
As we utilize a 3rd party service for our shipping calculators, we are working with them to resolve the issue as quickly as possible. In the meantime, as a temporary solution, we recommend either enabling other carrier options (such as UPS or FedEx), or use Custom Shipping Rates to approximate your USPS shipping options.
We apologize for the disruption and thank you for your patience. This blog post will be updated with a date stamp once the issue is resolved.