Solidgate’s sandbox testing capabilities, which encompass successful transactions, failures, fraud detection, and error modeling, are valuable for identifying potential issues and ensuring system stability.

By testing various payment methods such as card payments, Google Pay, Apple Pay, and PayPal, you can ensure interoperability and security, and prepare your integration for real-world scenarios.

Card payments

To test your Solidgate integration, use your sandbox channel with specific keys:

• Guide
  Learn to authenticate API requests and fix validation errors effectively. Webhook keys , which start with the prefix wh_pk_/wh_sk_ , allow for receiving simulated webhook notifications.
• Guide
  Learn to authenticate API requests and fix validation errors effectively. API keys , starting with api_pk_/api_sk_ , are used to make API requests within our sandbox.

Test scenarios are available to simulate processing , success , and failure , which are crucial for assessing your system’s readiness and reliability across varied payment conditions. Use the following test credentials to test:

Success orders

Declined orders

Card brand test

This section provides a list of test cards that can be used to verify the payment system.

Errors

Use the test cards to simulate payments that the issuer rejects for various reasons. This can be useful for testing the error-handling logic of your integration.

General decline

These errors reflect declined transactions from bank refusals, order time-outs, compliance issues, or authentication failures.

• 0.01 Guide
  The general group of declines. The card-issuing bank did not complete the transaction successfully. General decline
• 0.02 Guide
  The customer could not finalize the payment during the given timeframe, which resulted in order expiration. Order expired
• 0.03 Guide
  In some cases, the card issuer can block a transaction for law violation reasons. It can be due to a cardholder or due to a sanctioned country. Illegal operation

Validation errors

These errors indicate that correcting the input data can typically resolve invalid transaction data.

• 2.06 Guide
  The CVV code is the three-digit code on the back of a Mastercard or Visa, or the four-digit code on the front of an American Express. Invalid CVV2 code
• 2.08 Guide
  The customer entered an incorrect card number. Invalid card number
• 2.09 Guide
  Card is expired. Invalid expiration date
• 2.10 Guide
  3DS URL was not displayed to the cardholder during 3D Secure authentication attempts. Invalid 3DS flow on the merchant side

Transaction declines

Transaction declines arise from factors like card limits, insufficient funds, or fraud concerns, often necessitating bank contact or alternative payment methods.

• 3.01 Guide
  The card issuer bank blocked the card for payments. Card is blocked
• 3.02 Guide
  The customer’s card balance has insufficient funds. Insufficient funds
• 3.03 Guide
  Card payment/credit limit was reached. Payment amount limit excess
• 3.04 Guide
  The transaction has been declined by the card issuer. Reasons for decline can vary, including limits on online payments, daily payment amounts, or daily transaction counts. Transaction is declined by issuer
• 3.05 Guide
  Contact card issuer for clarifications. Call your bank
• 3.06 Guide
  The card has been declined for an unknown reason. Debit card not supported
• 3.07 Guide
  The card has been declined for an unknown reason. Card brand is not supported
• 3.08 Guide
  The card has been declined for an unknown reason. Do not honor
• 3.10 Guide
  The issuing bank blocked the transaction due to possible fraud. The card was not in use for a long time, unusual activity, and other reasons. Suspected fraud

Fraud and anti-fraud

These errors indicate transactions flagged for potential fraud due to blacklisted cards, stolen cards, or triggered antifraud rules, requiring merchants to display a general decline and conduct further investigation or recommend customers to try again.

• 4.02 Guide
  The card in use is stolen, all transactions are restricted. Stolen card
• 4.05 Guide
  The acquiring bank blocked the transaction due to possible fraud. The card was not in use for a long time, unusual activity, and other reasons. PSP antifraud
• 4.07 Guide
  An antifraud rule was triggered. Trusted antifraud system

Data or card verification

These errors relate to address mismatches, failed 3D verification, and issues with card tokens, requiring merchants to verify customer information, check for fraud, and consult support as needed.

• 5.01 Guide
  Understand why the payment is declined and how you can resolve it. 3D secure verification failed
• 5.02 Guide
  We received an invalid/nonexistent card token. Invalid card token
• 7.01 Guide
  An error occurred and the token was not found. Card token not found

Connection or processing issues

These errors relate to transaction issues and connection errors; solutions include retrying, using a different card, or contacting the bank.

• 5.03 Guide
  Processing error. Application error
• 5.08 Guide
  Processing error. The transaction is not authorized due to technical issues. Invalid transaction
• 6.02 Guide
  A connection is poor or interrupted. Connection error

Card blocked or restricted

These errors refer to transactions blocked due to lost or restricted cards, requiring merchants to offer alternative payment options and check for potential fraud.

Merchant configuration or activation errors

These errors are related to merchant configuration and API communication issues. The resolution steps include contacting the Solidgate support or ensuring proper API method usage.

Apple Pay or Google Pay

Our sandbox provides a secure environment for simulating the integration of Guide
Enable Google Pay button to give your customers more payment options. Google Pay and Guide
Optimize your payment form with Apple Pay integration, providing a secure and efficient checkout for Apple device users. Apple Pay , ensuring no risk to actual bank accounts or transactions.

For the initial one-time payment, using any amount not detailed below will result in a standard approval, ensuring all subsequent recurring payments on that token are automatically approved. However, to initiate a specific recurring or recurring auth payment outcomes, the initial transaction must have predefined amount values, which should be specified in cents, for example, amount 100 means 1:

• 100 for Guide
  3D Secure enhances online payment security by verifying cardholder identity, reducing fraud, and shifting liability from merchants to card issuers. no 3DS success
• 666 for Guide
  Challenge flow in 3D Secure 2 requires cardholder interaction for authentication, triggered by high-risk scenarios or regulatory mandates. challenge success
• 555 for Guide
  Frictionless flow in 3D Secure 2 authenticates transactions silently, requiring no input from the cardholder for low-risk payments. frictionless success

Using an amount different from the specified values for the initial transaction ensures that subsequent recurring payments are always approved, demonstrating the flexibility of the system in handling various transaction types.

PayPal

PayPal testing allows you to simulate failed transactions using a sandbox environment, which is useful for ensuring that your system correctly handles various scenarios, including negative flows.

• Before you begin testing, ensure that your development environment is set up correctly.
• To perform testing, request access to the PayPal sandbox account from your account manager.

To test failed payments, set the API request with currency to USD and a specific amount, which should be specified in cents like amount 302 means 3.02, to trigger errors.