# Card Response & Result Codes

The following articles explain card responses and result codes used for testing purposes:

* [Card Error Response Codes](https://docs.xplorpay.com/api-reference/resources/card-response-and-result-codes/card-error-response-codes)
* [Card Transaction Result Codes](https://docs.xplorpay.com/api-reference/resources/card-response-and-result-codes/card-transaction-result-codes)
* [Card security code (CSC)](https://docs.xplorpay.com/api-reference/resources/card-response-and-result-codes/card-security-code-csc)
* [Address Verification Service (AVS)](https://docs.xplorpay.com/api-reference/resources/card-response-and-result-codes/address-verification-service-avs)
* [Duplicate Transaction Settings](https://docs.xplorpay.com/api-reference/resources/card-response-and-result-codes/duplicate-transaction-settings)