Fake CVV for Testing: Sandbox Rules and Limits

Our Cards

Choose from any of our gift cards to give to your loved ones

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Where to Use?

Redeem your gift cards at any of our Merchants

Where to Buy?

You can purchase a gift card from any of these locations

ABOUT US

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What is ONYX GiftCards?

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.

What is a Gift Card?

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.

How it Works?

  • Buy an Onyx Gift Card at these local stores
  • Give your gift card to friends, family, co-workers, etc.
  • The recipient can shop at our select merchants nationwide
  • Your friends, family, co-workers, etc. will present their gift card at checkout to pay for your item(s)
  • They will walk away happy with the best gift ever...the gift of Choice

Why ONYX GiftCards?

  • Save TIME. No need to run around looking for the perfect gift
  • Redeem from a variety of business island-wide. We will continue adding businesses as fast as ONYX grows.
  • ONYX Gift Cards do not expire
  • Cards are valued at convinient amounts to meet every need and occasion

Short answer

A fake CVV is a placeholder you type into a sandbox checkout form. It is not a real card code and it links to no account. Payment processors publish test card numbers, and their test mode accepts a fixed or arbitrary CVV for those numbers. Nothing is charged and no bank is contacted.

What the CVV is on a real card

Visa calls it the Card Verification Value. It is the 3-digit code printed on the back of the card, next to the signature panel. American Express prints a 4-digit code on the front. The issuer generates the code and ties it to the account number. It is not stored on the magnetic stripe.

Test numbers come from the processor

The test card number and the test CVV belong to the same sandbox. Stripe documents 4242 4242 4242 4242 with any future expiry date and any 3-digit CVC. PayPal generates sandbox cards inside its developer dashboard. Adyen, Braintree and Authorize.net publish similar tables.

Common sandbox CVV values

Most gateways accept 123, 999, or any three digits on a test card. Amex test cards take a 4-digit CID. Some gateways let you trigger a specific decline by entering a CVV from their test table, such as a mismatch code. Check the processor docs for the exact rule. Values differ between providers.

What a placeholder CVV cannot do

It does not work on a live storefront. It does not pass 3-D Secure. It does not authorize a charge on a real card. The number is bound to the test card number and to the sandbox account that issued it.

Legal boundary

Test card data is for systems you own or are authorized to test. Using a card number, CVV, or expiry that belongs to another person is card fraud in the US under 18 U.S.C. § 1029. PCI rules also bar storing the CVV after authorization.

How to test your own checkout

  1. Switch the gateway to test mode.
  2. Load a test card number from the gateway docs.
  3. Enter an accepted CVV and a future expiry date.
  4. Run the decline scenarios the docs list.
  5. Switch back to live mode and confirm the test keys are removed.

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