This guide walks you through configuring Affirm at checkout in Shopify.
Affirm promotional messaging
Make sure you've set up Affirm promotional messaging before moving forward.
1. Sign in to your Shopify account and go to Settings > Payments.
2. In the Alternative Payments section, click the Choose alternative payment button.
3. On the Alternative payment providers page, select Affirm.
4. Check the Use test mode checkbox for testing in our sandbox.
5. Enter your
private_api_key you retrieved from your Affirm merchant dashboard
Note: Make sure you use your Live keys for testing, not your Sandbox keys.
6. Click Activate. Affirm is now a payment option in Shopify.
Updated 10 months ago
Nice work! Now you can start testing your integration with your Technical Account Manager. You may also want to learn more about processing transactions in Shopify, and some additional features for Shopify Plus users.