To set the shipping schemes that your customers will be presented with upon checkout, select from the radio buttons shown above. After you select the desired scheme, click step 2.
If you have selected UPS shipping or USPS shipping, you will be presented with the screen shown above where you enter your zip code and select which UPS and USPS options you would like to present to your customers. You should also select if you would like your customers to bea able to continue if there is an error or do not let the the customer continue.