How To: Set up USPS in CS-Cart¶

1. In the Administration panel, go to Settings → Shipping methods.

2. Create a shipping method with the + Add shipping method button in the upper right part of the page, or choose an existing one by clicking on its name.

3. Set Rate calculation to Realtime, select USPS as a Carrier, and choose USPS Media Mail (or another USPS service) as a Shipping service.

   

4. Open the Configure tab and specify the necessary settings there. Enter your USPS credentials in the User ID field. If you do not have any, you need to sign up for the USPS User ID here.

   Important

   You should confirm your USPS User ID before using it. Call USPS (800-344-7779) to activate your account on the production servers. It will not work until you do this.

   

   Note

   Only some specific requests for retrieving shipping costs work properly when the Test mode option is enabled.

5. (optional) Switch to the Shipping time and rates tab and define shipping charges which will be added to the ones returned by USPS.

6. Click Save (or Create, if you’re adding a new shipping method).

7. Go to to the Test rate calculation tab. Click the Recalculate rates button to find out the shipping cost. The calculation considers the weight that you specify in the form, as well as the company address and default customer address.