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How to set up USPS shipping method in Magento

Enable USPS for your Magento store:

-From the admin menu, navigate to system > configuration

Select System, then Configuration

-Under sales, select shipping methods

-Locate the USPS section >> expand>> set enabled for checkout to ‘yes’

**In Magento 2 you will need to go Stores>>Settings>> Configuration –Locate the Sales Tab>>Go down to Shipping Methods**

Magento 2 USPS setup

For Magento 1 Customers, refer to the following guide.

For Magento 2 Customers, refer to the following guide.

The steps are essentially the same between the two, the only major difference is where to find the shipping method setup.

You will need to set up a USPS account in order to get the API so Magento can communicate with USPS shipping methods.

In order to get the USPS API, you will need to set up a USPS account which you can do here: USPS Web Tools account. This account will provide you with the user ID and password that you can enter into their respective fields.

When the invoices are pulled down into POSIM, the shipping method that was selected will not show up anywhere except as a freight cost. To get the specifics on how to ship this invoice, you will need to locate the order on Magento, invoice it, and then ship it out with its tracking method.

For an overview of the order process, please refer to the following Link: Order Process Overview

If you would like POSIM e-commerce support to set this up for you, contact Sales at 800.409.7678 or

If you have questions please contact 801.546.1616 or email our e-commerce support inbox at