Configure Affirm in BigCommerce

Integrate Affirm into your BigCommerce platform.


This guide walks you through integrating Affirm with your BigCommerce platform.

Step 1: Confirm your website is using Optimized one-page checkout

Before proceeding with the integration, you'll need to ensure that the Optimized one-page checkout is enabled. Follow the steps below to confirm:

  1. Go to Settings > Advanced > Checkout.
  2. Check whether you can see the Checkout Type setting. If you can't, you already use the Optimized one-page checkout and can proceed to the next step.
  3. If you are on a legacy checkout, you will see the Checkout Type field available with either Single-page express checkout or Multiple-page checkout selected.
  4. To enable Affirm, you need to select Optimized one-page checkout and click Save.


Optimized one-page checkout

For more information about Optimized one-page checkout, visit

Step 2: Enable Affirm as an online payment method

  1. Go to Settings > Setup > Payments and scroll down to Additional Providers.
  2. Under Online Payment Methods, look for Affirm and click the toggle button to turn it on.
  1. Click on Affirm Settings and fill in the corresponding fields with the API key pair credentials from your Affirm merchant account.

Affirm Settings

Public KeyThe Public Key from your Affirm dashboard.
Private KeyThe Private Key from your Affirm dashboard.
Minimum Order ValueThe minimum order amount (before taxes and discounts) that must be met before Affirm displays as an option at checkout. If blank, Affirm will be displayed for all orders over $50.
Transaction TypeCan be set to Authorize & Capture or Authorize Only.

- Authorize & Capture will capture your Affirm charge and your order will have the status of Awaiting Fulfillment in BigCommerce.

- Authorize Only allows you to capture the funds manually. Your order will have the status of Awaiting Payment in BigCommerce. Once you manually capture the order in BigCommerce, the transaction will also be captured automatically in Affirm.
See Manually Capturing Transactions (Authorize Only) to learn more on how to manually capture transactions within BigCommerce.
Test ModeDetermines whether your store is in sandbox or Test Mode. Make sure this is enabled until you are ready to take live payments.

Other helpful resources

Congrats! You've successfully set up your BigCommerce integration. Next, configure your promotional messaging start providing details on our flexible payment options to your customers.