# Test Transaction | Dodo Payments

> Learn how to run test transactions in sandbox mode with Dodo Payments. Ensure your payment integration is working perfectly before going live with your SaaS.

- **URL**: https://dodopayments.com/videos/test-transaction
- **Video**: https://www.youtube.com/watch?v=5CcUSE4L_cg

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Before launching your application to the public, it is essential to ensure that your payment integration is working exactly as expected. This video provides a detailed guide on how to run test transactions using the Dodo Payments sandbox mode. We walk you through the process of setting up a test environment, using our provided test card numbers, and verifying that your webhooks and API calls are functioning correctly. This testing phase is crucial for a smooth and successful go-live experience.

In this tutorial, you will learn how to simulate various payment scenarios, including successful transactions, declined cards, and subscription renewals. We also show you how to check the results of these tests in the Dodo Payments dashboard, allowing you to debug any issues before they affect real customers. As your merchant of record, we provide a robust testing infrastructure that mirrors our production environment, giving you the confidence that your billing system is ready for global commerce.

By the end of this video, you will have a clear checklist for testing your payment integration. We also share best practices for transitioning from sandbox to production mode safely. Dodo Payments is designed to make the development and testing process as straightforward as possible, providing clear feedback and powerful tools for developers. Watch this guide to master the test transaction process and ensure your SaaS billing is rock-solid before launch.