Hi All. Has anyone been successful at setting up USPS Flat Rate box shipping? We have an Endicia account and are able to use some of the basic shipping types. There doesn't seem to be a way to select USPS and flat rate on the Shipping Item > Shipping Rate tab. For example, i want to utilize priority fixed rate box shipping.

Are you printing labels from NetSuite?

@KevinJ of Kansas yes we are.