Simple Order API Client Developer Guide {#ID-0000004c}
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This section describes how to use this guide and where to find further information.

Audience and Purpose
:
This guide is written for application developers who want to use the Simple Order API client to integrate `Cybersource` services into their order management system. The guide describes tasks you must complete to install, test, and use the Simple Order API client software.

    Using the Simple Order API client SDK requires programming skills in one of the following programming languages:

    * C, C++
    * Java/Cold Fusion
    * .NET
    * PHP

    {#ID-0000004c_ul_sbh_wbj_shc}  
    To use these SDKs, you must write code that uses the API request and reply fields to integrate `Cybersource` services into your existing order management system.

Conventions
:
These statements appear in this document:

    > An *Important* statement contains information essential to successfully completing a task or learning a concept.

    > 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
:
Visit the [`Cybersource` documentation hub](https://developer.cybersource.com/docs.md "") to find additional technical documentation.

Customer Support
:
For support information about any service, visit the Support Center:

<http://support.visaacceptance.com>