PayPal Sandbox Test Card: A Guide for Testing
Learn how to use a PayPal sandbox test card for testing transactions without real money.
Redeem your gift cards at any of our Merchants
You can purchase a gift card from any of these locations
Onyx Gift Cards is a Grenadian company designed to introduce, market and manage gift cards systems in Grenada for retailers and corporations. We are enthusiastic about the effect and influence we will have on the local market. We intend to expand our systems regionally with a range of product offerings and services.
Gift cards are the preferred way of giving and receiving gifts. They carry a monetary value that can be redeemed for gifts at your favorite store.
Onyx GiftCards are “Open Gift Cards” which means that they can be redeemed at multiple merchant locations. They are standard credit card size, can fit into the average wallet and made of PVC plastic. Onyx GiftCards are Barcoded for security and safety for the consumer and bear a disclaimer at the back.
Onyx Giftcards can be bought with a branded Card backer which is black in colour and is designed to fit the card. There is an area to write a brief message to the recipient as well.
PayPal's sandbox gives you published test card numbers that behave like real cards inside a simulated checkout, so you can run a complete payment flow online without touching a live account or a real card. You load sandbox credentials into your test environment, pick the number that matches the outcome you want, and watch the transaction approve, decline, or error out exactly the way a live one would. No real money moves at any point.
A sandbox card test exercises your checkout integration against PayPal's simulation layer. The simulator reads the card number you submit and returns a predetermined result, letting you verify that your order logic, error messaging, refund flow, and webhook handling all respond correctly before you go live.
Sandbox test cards use fixed, publicly documented numbers paired with future expiry dates and a constant three-digit security code. They resolve only inside the PayPal sandbox, are not linked to any real account, and will never work in production. Each number is wired to one response code, so a decline scenario always declines and a success scenario always succeeds. Because the same numbers are shared by every developer, treat them as public test fixtures rather than private credentials, and never substitute a real card number or CVV from a live account in a test environment.
There is nothing to ship, since everything here is documentation and a sandbox account you create yourself. Access is immediate once your developer account is set up, scenarios can be re-run as many times as you like at no cost, and if a case does not behave as documented you can reset the environment and start clean rather than waiting on a replacement.
No. Sandbox accounts and test cards are free, and simulated transactions never settle, so there is no charge to you or to a buyer.
No, and you should not. The simulator only recognizes published test numbers, and using genuine cardholder data in a test environment creates needless compliance risk.
Usually because the number maps to a decline or error scenario, or because the expiry and security code do not match the test values. Confirm the exact number, then check that your sandbox credentials are pointed at the test endpoint.