# Support
source: https://developer.mastercard.com/mastercard-processing-core/documentation/support/index.md

## FAQ {#faq}

Mastercard Processing brings integrated, end-to-end debit, credit, prepaid, commercial, and virtual card processing solutions, enabling you to meet consumers' evolving needs across the entire payments life cycle with efficiency, scalability, and speed to market.   
Partnering with us means you can bring the latest innovation to your customers in a safe, efficient, and cost-effective manner. In addition, you have access to Mastercard's other innovative, value-added services, unlike independent service providers. Mastercard Processing provides a global solution that includes Europe and the Middle East and Africa (MEA) regions. New countries are being added due to issuer demand and regulatory, legal, and Scheme compliance scans. A standard set of APIs used for any card product (prepaid, debit, credit, or commercial) management:

* Create basic objects (client, account contract, and card contract) in the Mastercard Processing Card Management System (MP CMS).
* Set or retrieve a PIN for the card.
* Replace or renew the card.
* Manage usage limits.
* Manage transactions and fees.
* Manage and retrieve various data from the MP CMS.

Depending on the card product, during the onboarding process, it is defined which API operations are available for you.
You can try the APIs using the API Explorer offered by the Mastercard Developers portal or self-onboard on the Sandbox environment. To test the API in the Sandbox environment, you create a project in the Developers' portal, generate sandbox keys, and use our test data. The sandbox environment returns the responses using dummy data, and the response format is the same as the response in the MTF/UAT and Production environments.

Sandbox is a good environment to ensure you can correctly authenticate with the gateway using a shared client certificate, encrypt sensitive data in the requests and decrypt data from the responses, comply with the API specification, and experience the API functionality.
Sign-up requires you to sign a letter of intent and complete the implementation project scoping to agree on specific requirements to be prepared in the MTF and Production environments. Mastercard Processing takes utmost care while handling sensitive data. The Core API uses JSON Web Encryption (JWE) end-to-end payload encryption for all operations. In addition to JWE, Mastercard Processing provides extra encryption:

* for PIN block operations using Mastercard Processing symmetric or asymmetric encryption
* to support PCI DSS non-compliant issuers with displaying the card details in a mobile application (PAN, PIN, and CVC2 encrypted with the Public key generated by the mobile application on the cardholder's device).
Yes. Mastercard Processing (MP) supports both full-PAN issuers and issuers de-scoped from the PCI DSS regulation (PAN-less issuers). Instead of PAN, unique technical identifiers (generated by the MP Card Management System) are used in the Core APIs requests. MP provides the solution for PAN-less issuers to display the cardholder's sensitive data (PAN, PIN, and CVC2) in the mobile application securely (data can be encrypted only by the mobile application on a cardholder's device). Mastercard Processing Core API follows ISO 3166 for country codes and ISO 4217 for currency codes, which are updated as needed. Contact your Mastercard representative for pricing details. Mastercard Processing has designed a seamless implementation process built on best practices. Mastercard Processing Customer Delivery teams manage the end-to-end implementation through a structured project management methodology, ensuring the project is delivered according to the agreed specifications and time following an integrated project plan, including scheme and processing elements. A Project Manager will be assigned to the project upon initiation. They will drive all necessary project management tasks and coordinate efforts to ensure the timely delivery of the products. If you do not have a Mastercard representative, [send a request for further help](mailto:m.p.commercial@mastercard.com;).

## Get Help {#get-help}

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