# Avalara for Communications Geo SaaS Pro Soap Developer Guide

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_geo_soap/

Avalara for Communications Geo SaaS Pro Soap Developer Guide

-   [Get Started](/communications/dev-guide_geo_soap/getting-started/)

Welcome to the Avalara for Communications Geo SaaS Pro Soap Developer Guide!

This guide provides you with an overview of the Avalara for Communications Geo SaaS Pro Soap API functionality, including:

-   [Endpoints and web service methods](/communications/dev-guide_geo_soap/getting-started/endpoints-methods/)
-   [Descriptions](/communications/dev-guide_geo_soap/reference/) of XML properties and request formatting
-   [Examples](/communications/dev-guide_geo_soap/customizing-geocoding-requests) of specific use cases and how to customize your requests

AFC Geo SaaS Pro Soap is an XML web service that provides address verification and assignment of the tax jurisdiction for US addresses. Locations are passed as address or latitude/longitude coordinate pairs.

AFC Geo SaaS Pro also provides the option to return a Coding Accuracy Support System (CASS) certified address. [CASS validation](/communications/dev-guide_geo_soap/geocode/cass/) is the process of normalizing addresses to USPS Publication 28 standards and validating the address against current USPS AMS-II data. All address elements are verified and these data points are added to the address:

-   ZIP code
-   ZIP+4
-   Carrier route
-   Delivery point
-   Barcode detail

AFC Geo SaaS Pro Soap is [certified](/communications/dev-guide_geo_soap/geocode/florida-certification/) by the Florida Department of Revenue to assign the correct jurisdiction for the Florida Communications Service Tax.

Copyright © 2019 Avalara Inc. All rights reserved.

-   [Get Started](/communications/dev-guide_geo_soap/getting-started/)