All products must have dimensions and weight assigned to them.
To use USPS Live rates, activate the method in the shipping admin screen for domestic, international or both.
You do not need to configure this method with a USPS account number. It will return published rates for shipments.
Add Insurance: Check this box to add insurance to all packages. This increases the rate by the published USPS insurance rate.
Fee For Delivery Confirmation: Add an additional fee to published rates by adding the fee here.
You can choose which domestic live rates to use by checking the corresponding boxes in the Approved Domestic rates section of the USPS Settings page.
You can choose which international live rates to use by checking the corresponding boxes in the Approved International rates section of the USPS Settings page.