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eCheck Merchant Guide {#doctemp-about-guide}
============================================

This section describes how to use this guide and where to find further information.

Audience and Purpose
:
This guide is for merchants who implement and use the eCheck service, either in the `Business Center` or by using the APIs.

Conventions
:
These statements appear in this document:

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

Related Documentation
:
Visit the `Cybersource` documentation hub for additional technical documentation.

    [https://developer.cybersource.com/docs.html](https://developer.cybersource.com/docs.md "")

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

[http://support.visaacceptance.com](http://support.cybersource.com "")  
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