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llms.txt

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Decision guides Choose what to test in the sandbox

Run a payment end to end

Create a sale, read it back, and make the sandbox decline you once, all from one blueprint.

Your answers so far

What are you testing next?
A payment going through, start to finish. Change

Choose one

    What to build

    Run the first-payment blueprint against a sandbox merchant. It creates a card sale at an amount the sandbox always approves, reads the transaction back, and then sends a declining amount so you see both shapes of response before you write code against either.

    What this means for PCI

    This is guidance rather than a compliance determination. Which questionnaire you are eligible for depends on your full environment, so confirm it with your QSA or your acquirer before you rely on it.

    Worth knowing

    • The sandbox picks the result from the amount, the billing ZIP, and the security code, not from the card number. Use the blueprint's amounts rather than inventing your own.
    • Send an idempotency key from your first request, so it's already in place when you test retries.

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