Recurring Billing User Guide {#doctemp-about-guide}
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This section describes how to use this guide and where to find further information.

Audience and Purpose
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This guide is written for merchants who use the upgraded or new Recurring Billing service that is available through the `BA360` and the REST API.

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