Our integration with Shift4Shop gives you access to all of Affirm's features, including flexible payment options, order management, and easy-to-implement on-site messaging to amplify awareness and conversion.


The Affirm integration is only available for merchants on Shift4Shop legacy paid plans. This integration is not accessible on the free Shift4Shop End to End plan.


  • Flexible payments: Offer Affirm's flexible payment options on the checkout page
  • Order management: Seamlessly manage and process Affirm charges in your order management system.
  • On-site messaging: Add Affirm promotional messaging at every phase of the shopping journey—increasing conversion and average order value for your business

Integrate Affirm

Add Affirm to your e-commerce platform in 3 easy steps:

Step 1: Install the Affirm App

Install Affirm in the Shift4Shop admin page.

Step 2: Configure the Affirm extension settings

Configure Affirm in your Shift4Shop online dashboard.

Step 3: Test and go live

You're all set! Test your integration out and you're ready to go live!