# Test authentication

Source: https://developer.avalara.com/erp-integration-guide/authentication-in-avatax/test-authentication/

Avalara provides the following site where you can test your credentials: [https://developer.avalara.com/avatax/test-credentials/](https://developer.avalara.com/avatax/test-credentials/).

On the left navigation pane:

1.  Select your environment (Production or Sandbox)

2.  Enter either your username and password or your account number and license key, then click **Submit**.

![A screenshot showing a site where users can go to test their credentials.](https://avalara-devdocs-prod.mcoutput.com/avatax-for-erps/Content/Resources/Images/DevDot/test-authentication_826x407.png)