# Support
source: https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/support/index.md

This section contains additional information that offers supporting details to this document.  

## FAQ {#faq}

Participants create a sandbox project, [View Tutorial](https://developer.mastercard.com/account-to-account-commerce-for-csp/tutorial/creating-a-sandbox-project/index.md). For access to API in MFT, [View API Reference](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/api-reference/index.md) page. Participants request to move to production, [View Tutorial](https://developer.mastercard.com/account-to-account-commerce-for-csp/tutorial/move-to-production/index.md). For access to API in Production, [View API Reference](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/api-reference/index.md) page. Participants can run the pre-defined set of test case scripts using SOAP UI. Please contact your Mastercard representative for more information. For details on testing and certification, refer to the [Testing](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/testing/index.md) page. Yes, a Mastercard contract is required. Please contact your Mastercard representative if you have questions about fees and contract requirements. Please refer to relevant swagger files under the [API Reference](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/api-reference/index.md) page. Documentation can be imported as a swagger file, either as part of the API, or separately. The data format used for these APIs is JSON. The Account to Account Commerce product is available in the global market. The core use cases are guest checkout (single immediate payment), refunds, account on file use cases, and disputes. More details can be found in the [Use Cases](https://developer.mastercard.com/account-to-account-commerce-for-csp/documentation/use-cases/index.md) page of this site. Yes, there are scheme rules. Please contact your Mastercard representative for more details. Yes, there is a sandbox environment that enables customers functional testing prior to using the Mastercard testing facility (MTF) environment.

## Get Help {#get-help}

### Contact us for technical support. {#contact-us-for-technical-support}