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How to Enable the New FedEx APIs in Web Shop Manager

Step-by-step instructions for switching from the legacy FedEx integration to the new FedEx REST API integration in Web Shop Manager.

This guide walks you through enabling the new FedEx REST API integration in Web Shop Manager (WSM). Follow each step carefully to switch from the legacy FedEx integration to the new REST-based integration.

Steps

  1. Go to the FedEx section in WSM admin::
    1. Go to the Web Shop Manager admin dashboard > System > Configuration
      Screenshot 2026-05-08 054724

    2. Then go to the Shipping & Handling tab and scroll down to the FedEx section
      Screenshot 2026-05-08 054805
  1. Click the checkbox for “Use new FedEx REST Integration” and scroll down the page to hit the Save buttonScreenshot 2026-05-08 055723
  1. Login to https://developer.fedex.com
  2. Go to My Projects
    https://developer.fedex.com/api/en-us/project.html#/myprojects

    Screenshot 2026-05-08 055649
  3. Click the name of the project you used when you first generated your FedEx Address Validation API credentials
  4. Click on Production Key tab
     Screenshot 2026-05-08 055616
    1. To ensure you’re looking at the correct project on FedEx, open your WSM admin  dashboard, and check if the API keys match with what you have on your FedEx shipping configuration
      Screenshot 2026-05-08 055523
      1. The API key on FedEx should match the REST API Key you have on WSM admin:
        Screenshot 2026-05-08 055443
  5. Back on FedEx, once in the Production Key tab, click on Add API
    Screenshot 2026-05-08 055358
  6. Ensure the following APIs are selected:
    1. Address Validation API - required; add if you don’t have it enabled yet
    2. Rates and Transit Times API - required for regular packages, ground shipping
    3. Freight LTL API - required  if you use Freight options, e.g. Freight Economy, Freight Priority, etc.
      Screenshot 2026-05-08 055310

  7. Freight LTL API - required  if you use Freight options, e.g. Freight Economy, Freight Priority, etc.
    1. Address Validation API (required)
    2. Rates and Transit Times API (required)
    3. Freight LTL API (required if you use Freight methods)Screenshot 2026-05-08 055228