# What are you testing next?

[Choose what to test in the sandbox](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test.md): Which sandbox scenario proves the part of your integration you're about to ship, and the blueprint that runs it.

Every scenario here runs on a sandbox merchant and reaches no card network. Pick the behavior you need to see your code handle.

**Choose one**

- [A payment going through, start to finish.](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test/run-a-payment-end-to-end.md): Your first request, or a check that nothing basic is broken.
- [What my code does when a payment is refused or comes back.](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test/which-refusal.md): Declines, partial approvals, verification results, and ACH returns.
- [What my code does when a processor is slow or unavailable.](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test/what-the-processor-does.md): Timeouts, and the platform failing over to another processor.
- [The events my systems receive after a payment.](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test/receive-and-verify-a-webhook.md): Webhook deliveries, and proving they came from this platform.
- [How a particular kind of card is classified.](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test/run-the-classification-test-cards.md): Debit, prepaid, commercial, government, healthcare, or EBT.

- [Start over](https://devportal.qa.winkpg.io/docs/decide/choose-what-to-test.md): go back to the first question.

## See also

- [All documentation](https://devportal.qa.winkpg.io/llms.txt): the machine-readable index of every public page on this site.