USPS

uspsCrossView Integration for USPS shipping provides a secure method to calculate ship rates through the USPS service. This includes the ability to estimate the ship rates and to track shipments.

For more information on USPS ship, please see the following URL: http://www.usps.com/webtools/technical.htm

 

FAQs

  1. Does USPS support both 5 digit and 9 digit zip codes? What if a user uses 9 digit zip code with/without hyphen?
    USPS only supports 5 digits zip codes. If a user uses a 9 digit zip code (with or without a hyphen) then integration converts it into a 5 digit zip code before sending the request to USPS. First 5 digits are taken from the 9 digits.