# Sandbox or Production mode

Source: https://developer.avalara.com/products/communications/integration-guides/communications-integration/zhz1017528983358/

Guide: Communications

# Sandbox or Production mode

**Element type: Required**

**Enpoints/models used:** N/A

Your UI must provide a method for users to specify whether they’re working in Sandbox or Production mode.

-   Sandbox mode URL: [communicationsua.avalara.net](https://communicationsua.avalara.net/)
-   Production mode URL: [communications.avalara.net](https://communications.avalara.net/)