CartDNA is a Shopify Payment App Development Partner

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CartDNA App General Integration Guide for Shopify

Install fast. Connect global payments. Increase conversions.

CartDNA extends Shopify's native checkout to support 720+ local and alternative payment methods across 190+ global markets — without replacing Shopify Payments or breaking your checkout flow.

This guide covers how to install, set up, and test CartDNA's payment integration with your Shopify store.

Most setups take under 15 minutes

No technical skills needed. Just install the app and connect your provider.

Why Integration Matters

Your checkout is where revenue happens. But if customers don't see their preferred payment method, they leave.

CartDNA integrates directly with Shopify's native checkout to offer local payment methods — without redirects, pop-ups, or extra steps.

Results:

Accept 720+ payment methods across 190+ global markets

Support local preferences (iDEAL, Bancontact, BLIK, Klarna, etc.)

Improve trust and checkout completion

Merchants report 10-30% increases in conversion rates

See all supported payment methods

How to Install CartDNA

Installation takes 10-15 minutes. No coding required.

Follow these steps:

1

Install the CartDNA App from Shopify App Store

  • Search "CartDNA" in the Shopify App Store
  • Click "Install"
  • Accept app permissions (required for checkout access)
Step-by-step installation guide
2

Connect Your Payment Provider

  • Log into CartDNA dashboard
  • Choose your provider (Stripe, Adyen, Mollie, etc.)
  • Enter API credentials (test mode first, then live)
How to update app settings
3

Activate Payment Methods for Your Market

  • Select your target countries
  • Enable local methods (e.g., iDEAL for Netherlands)
  • Set logos and display names
4

Test Your Checkout

  • Use test mode to run a test order
  • Verify payment methods appear correctly
  • Switch to live mode when ready

How CartDNA Works with Shopify Checkout

CartDNA connects directly to Shopify's native checkout using Shopify Functions. It does not replace or redirect your checkout.

Key points:

Works alongside Shopify Payments (not a replacement)

No redirection — customers stay on your Shopify checkout

PCI-compliant and fully secure

Compatible with all Shopify themes and checkout customizations

You keep full control over your checkout experience.

Common Setup Scenarios

Switching from Test Mode to Live Mode

After testing, update your API keys in CartDNA settings to live credentials. Disable test mode. Your payment methods will now process real transactions.

Updating Payment Provider API Keys

If your provider rotates keys or you change providers, go to CartDNA settings and update credentials. No need to reinstall the app.

Setting Up Multi-Market Payments

Activate country-specific methods per market (e.g., iDEAL for Netherlands, Bancontact for Belgium). CartDNA automatically shows the right methods based on customer location.

Best Practices for Integration

Follow these tips for optimal performance:

Show local payment methods first (customers expect them)

Display provider logos (increases trust)

Keep checkout fast — avoid custom scripts that slow page load

Test regularly after Shopify or app updates

Example:

A Netherlands-based store might show: iDEAL, Bancontact, Credit Card, PayPal — in that order.

Frequently Asked Questions

Do I need technical skills to install CartDNA?

No. The installation is designed for non-technical users. Follow the step-by-step guide in your CartDNA dashboard.

Does CartDNA work with all Shopify themes?

Yes. CartDNA integrates at the checkout level, so it works with any Shopify theme or checkout customization.

Can I switch payment providers later?

Yes. You can change providers in CartDNA settings without reinstalling the app.

How long does integration take?

Most merchants complete setup in 10-15 minutes. Testing may take an additional 5-10 minutes.

Start Accepting More Payments Today

Ready to expand your payment options? Install CartDNA now and connect your first payment provider in under 15 minutes.