App credentials are API keys from your PSP used to connect and configure CartDNA payment apps.

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Learn what app credentials are, how to find your test and live API keys from payment providers, and how to configure them within CartDNA apps to securely connect your Shopify store to banks and PSPs.

App credentials are a set of unique keys or codes—typically referred to as API credentials—that are used to securely connect a CartDNA application with external payment service providers (PSPs), banks, omnichannel platforms, or other payment processors. These credentials act as a bridge between your Shopify store and the payment provider’s system, allowing secure communication for processing transactions.

Each payment partner issues its own set of API credentials that grant you access to their payment infrastructure through our CartDNA app. These credentials are the same ones you would receive if you were integrating directly with the payment provider. By entering them into our app, you enable the seamless flow of data and transaction requests between your store and the selected payment provider.

Types of Credentials: Test vs. Live

Most payment partners provide two distinct sets of credentials:

Test Credentials: These are intended for development and testing purposes only. They allow merchants to simulate real transactions without any actual money being moved. This is an essential step in verifying that the payment method works correctly within your Shopify store before going live.

Live Credentials: Once the testing phase is complete and you’re satisfied with the setup, you can switch

You can usually obtain both sets of credentials by logging into your payment provider’s merchant portal or dashboard. In some cases, you may need to request them directly from their support team.

Using Credentials Within CartDNA Apps

All CartDNA applications are built to support both test and live environments. Merchants are encouraged to fully test the application using the test credentials before activating live transactions. Our apps allow unlimited test transactions so that you can simulate every possible payment scenario and ensure smooth functionality.

When you’re ready to switch to live mode, you’ll need to:

1. Purchase the live app license for your selected CartDNA application.

2. Agree to our terms and conditions as well as the transaction fee structure.

3. Enter the live credentials obtained from your payment provider into the app configuration section.

Conclusion

App credentials are a critical component of securely integrating third-party payment methods into your Shopify store. With CartDNA, you have full control over using your own test and live credentials provided directly by trusted payment partners. This approach ensures flexibility, transparency, and compatibility throughout the setup process. Always verify and test thoroughly with your test credentials before launching live transactions.