# Decision guides

Short walkthroughs for the choices you make before you write any code. Answer a few questions and each one ends on a recommendation, with links to the guides and blueprints that build it.

- [Cancel or refund a payment](https://devportal-simpay-sbx.winkpg.io/docs/decide/cancel-or-refund-a-payment.md): Whether undoing a payment is a void, a reversal, or a refund, and what each one does to the money and to your records. (4 questions, 6 outcomes)
- [Charge a customer again](https://devportal-simpay-sbx.winkpg.io/docs/decide/charge-a-customer-again.md): Whether repeat payments run on a contract the platform bills, on a schedule of your own, on an invoice, or at your checkout, and what the card networks need from each. (3 questions, 4 outcomes)
- [Charge now or authorize first](https://devportal-simpay-sbx.winkpg.io/docs/decide/charge-now-or-authorize-first.md): Whether to take the money in the same request as the approval, or hold the funds and capture them when you deliver. (2 questions, 4 outcomes)
- [Choose a reporting strategy](https://devportal-simpay-sbx.winkpg.io/docs/decide/reporting-strategy.md): Whether to ask this platform for payment data on a schedule, or to have it sent to you as it happens, and what each one costs you to run. (5 questions, 6 outcomes)
- [Choose an integration method](https://devportal-simpay-sbx.winkpg.io/docs/decide/integration-method.md): Three questions about where your customers enter their card details, and what that means for the PCI evidence you have to produce every year. (4 questions, 6 outcomes)
- [Choose what to test in the sandbox](https://devportal-simpay-sbx.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. (3 questions, 9 outcomes)
- [Retry a payment](https://devportal-simpay-sbx.winkpg.io/docs/decide/retry-a-payment.md): Whether a payment that didn't go through is worth sending again, and the request that sends it again without charging the customer twice. (2 questions, 6 outcomes)

## See also

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