---
title: "About CSA Check"
slug: "about-csa-check"
updated: 2026-07-23T13:03:06Z
published: 2026-08-10T20:23:40Z
canonical: "help.idibilling.com/about-csa-check"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.idibilling.com/llms.txt
> Use this file to discover all available pages before exploring further.

# About CSA Check

A CSA (Carrier Servicing Area) check is a search made to ensure that wireless service can be offered based on a subscriber's zip code.

A carrier uploads a coverage file with zip codes and their coverage status that can be searched when a new customer requests service, or an existing customer requests service for a different zip code.

If a customer has the IDI platform configured to perform these checks, during a Make Sale a CSA Check page is displayed that must be completed.

You may choose to require a Service Contact when the zip code entered for CSA check does not match the Primary Contact. This is to avoid tax-related issues that may arise when adding an account that has a service address outside of coverage area.

There is a setting to enable this functionality in Admin Console under Business Rules > Local Services > CostGuardService > POS. New Setting is called Require Service Address On alternate CSA Zip.

When the setting is enabled, the CSA Check wizard page requires a Service Contact when there is coverage, but the entered zip code does not match the Primary Contact zip code. It defaults to disabled.

See also:

[CSA Configuration](/v1/docs/csa-configuration)

[Make Sale Wizard - CSA Check](/v1/docs/make-sale-wizard-csa-check)