Welcome to the AvaTax for Ecommerce integration guide. This guide describes the steps to follow to integrate Avalara AvaTax into your ecommerce system. We've broken these steps down into individual milestones in the order that you should complete them.

For technology partners, several milestones includes a certification requirements section for you to learn quickly what you need to accomplish to earn an Avalara Sales Tax badge. The badge requirements are broken down into the following types:
- Required: We require you to include this design element to become certified.
- Conditional: Depending on your use case, this design element may be required.
- Suggested: You don't need this design element to become certified, but we recommend that your UI includes suggested elements.

Certification doesn’t entail a code review from Avalara. The requirements are provided to help you create an integration that is straightforward and uncomplicated for your users and to help ensure that your integration is tax compliant.

For API customers, we recommend that you follow this guide when using AvaTax APIs in your own systems.

Notice:

The information provided in this Integration Guide is based on standard practices. It is up to each individual developer to determine the applicability of such information and to verify the functionality and use of the information. All information, including examples of code, is provided on an "As-is" basis. Use of Avalara's website is covered by Avalara's site terms located here: https://www.avalara.com/us/en/legal/site-terms.html.

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