Samsung Pay Developer Guide {#applepay-about-guide}
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Audience and Purpose
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This document is written for merchants who want to enable customers to use Samsung Pay to pay for in-app purchases. This document provides an overview for integrating the Samsung Pay SDK and describes how to request the `Cybersource` API to process an authorization. Merchants must use the Samsung Pay SDK to receive the customer's encrypted payment data before requesting the `Cybersource` API to process the transaction.  
`Cybersource` supports Samsung Pay as a digital wallet, and this guide shows how to authorize a Samsung Pay digital wallet payment with and without 3-D Secure 2.2 authentication.

Conventions
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The following special statements are used in this document:

> IMPORTANT
> An *Important* statement contains information essential to successfully completing a task or learning a concept.
> WARNING
> A *Warning* contains information or instructions, which, if not heeded, can result in a security risk, irreversible loss of data, or significant cost in time or revenue or both.

Related Documentation
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Refer to the Support Center for complete technical documentation:  
<http://www.cybersource.com/support_center/support_documentation>

Customer Support
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For support information about any service, visit the Support Center:  
<http://support.visaacceptance.com>
