Some payment gateways may not support one-click upsells out of the box. 

For the one-click upsell feature to function, the payment gateway must offer card tokenization.

This documentation outlines the steps to assess and implement compatibility between your payment gateway and FunnelKit’s one-click upsells.

🔔 Please note that you need to hire a developer to set up payment compatibility for one-click upsells.

Key Requirement: Card Tokenization

The one-click upsell feature requires the payment gateway to have a card tokenization feature. 

Card tokenization allows the storage of a customer’s card details securely for reuse during subsequent transactions without requiring the customer to re-enter their payment details.

Step-by-Step Instructions to Verify Compatibility with the Payment Gateway

Here is the process you can follow to verify compatibility with your payment gateway and FunnelKit’s one-click upsells.

Step 1: Contact the support team of the payment gateway

Reach out to your payment gateway’s support team. Ask them if they support the card tokenization feature required for one-click upsells.

Here’s the example query:

"Does your payment gateway support card tokenization for stored payment methods? We need this feature to enable one-click upsells with FunnelKit."

Step 2: Developer documentation for integration

If the gateway supports card tokenization, we can provide a developer document that explains the steps to integrate this feature for compatibility with one-click upsells.

Here’s the document link: Developer Documentation

The documentation primarily focuses on Stripe integration but offers insights applicable to other payment gateways as well.

Step 3: Review existing gateway compatibility

Before diving into custom development, we recommend reviewing our existing gateway compatibility. 

Understanding how other gateways are integrated will give you a clearer picture of the implementation process and the required functionality.

By ensuring that your payment gateway supports card tokenization, you can leverage FunnelKit’s powerful one-click upsell feature. 

Once confirmed, follow our detailed developer guide to integrate the upsell functionality with your gateway.