Processor Reference

Cost+ works with multiple card processors. This page documents processor-specific behaviors, test cards, and error codes.

Shift4

Card Number	Flow	Brand	Behavior
`4018810000100036`	Frictionless	Visa	Success
`5420711000210016`	Frictionless	Mastercard	Success
`375987000169677`	Frictionless	Amex	Success
`36849800000679`	Frictionless	Diners Club	Success
`4018810000150015`	Challenge	Visa	OTP `0101` = success, `3333` = fail
`5299910010000015`	Challenge	Mastercard	OTP `4445` = success, `9999` = fail
`375987000000005`	Challenge	Amex	OTP `5678` = success, `3333` = fail
`6011947300799885`	Challenge	Discover	OTP `5678` = success, `3333` = fail

[!TIP] For challenge flow cards, use the specified OTP codes during 3DS authentication to simulate success or failure.

Card Number	CVV/CVC	Brand	Behavior
`4111111111111111`	any	Visa	Success
`5544330000000037`	any	Mastercard	Success
`4462030000000000`	any	Visa	Success
`4111111111111105`	any	Visa	Do Not Honor
`4111111111111143`	any	Visa	Stolen Card, pick up
`4111111111111151`	any	Visa	Insufficient Funds

[!WARNING] Rapyd limitations: Rapyd supports only one capture per authorization, and voids can only be processed before any capture.

Error Code	Description
`ERROR_CARD_AUTHENTICATION_FAILURE`	3DS authentication not completed in time; payment cancelled
`ERROR_CARD_CVV_NOT_VALID`	CVV correctly formatted but not valid
`ERROR_CARD_INFORMATION_NOT_VALID`	Card info correctly formatted but not valid
`ERROR_CARD_NOT_SUPPORTED_FOR_ECOMMERCE`	Transaction not supported for eCommerce
`ERROR_CARD_NOT_VALID`	Card ID is not valid
`ERROR_CARD_TYPE_DISABLED`	Card type is disabled
`ERROR_TRANSACTION_FAILED`	Card transaction failed
`ERROR_TRANSACTION_REJECTED_BY_CARD_PROCESSOR`	Rejected by processor (includes Visa/MC industry numeric code)
`ERROR_TRANSACTION_TYPE_NOT_ALLOWED_BY_SELLER`	Transaction type not allowed by seller
`ERROR_TRANSACTION_TYPE_NOT_SUPPORTED`	Not supported by card network
`INVALID_CARD_CVV`	CVV not recognized
`INVALID_CARD_NUMBER`	Card number not recognized