# Test authentication

Source: https://developer.avalara.com/avatax-dm-combined-erp/common-setup/authentication/test-authentication/

# 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, select your environment (Production or Sandbox), enter your username and password or your account number and license key, then click **Submit**.

![](https://www.avalara.com/content/dam/assets/ui/screenshots/test-credentials.png)

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