Testing Payments Safely with Sandboxes
You never want to test payments with real money. Every serious provider offers a sandbox — a complete copy of their system that behaves like the real thing but moves no money.
This article explains how we use sandboxes to ship payment features with confidence.
What a Sandbox Is
A sandbox mirrors the live payment environment with test credentials and test cards. You can run full checkout and subscription flows without ever charging a real customer.
What We Test There
- Successful payments and the access they grant.
- Declined cards and how the UI responds.
- Subscription renewals, upgrades and cancellations.
- Webhooks, refunds and dispute handling.
Going Live Safely
- Prove every flow works in the sandbox.
- Switch to live keys in a controlled release.
- Run one small real transaction as a final check.
If you need a hand with any of this, your Progressive Robot delivery team is ready to help. Raise a ticket from the Support area of your client portal or speak to your account manager and we will guide you through the next steps.