# Response Codes and Error codes
source: https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/index.md

For additional information about the Error and Return Messages, click on each of the section below:

* [Cross-Border System Errors](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/cross-border-system/index.md)
* [Error and Return Message Codes](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/error-codes/index.md)
* [HTTP Response Codes](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/http-response-codes/index.md)
* [Timeouts](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/timeouts/index.md)
* [Return Message](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/return-message/index.md)
* [Resources](https://developer.mastercard.com/cross-border-services/documentation/response-error-codes/resources/index.md)