Avalara AvaTax provides real-time address validation for U.S and Canadian addresses. The following fields are required:
- Account number
- License key
You can configure how the address validation should work under Configuration > Address validation. Click Add new to create a new address validation method for the desired country and set the gateway to "AvaTax".
![](/Portals/0/Images/KB/RevindexStorefront/AvalaraAddressValidationMethod.png)
Click on the edit icon to enter the account credentials for your provider. Click on Test connection to make sure your credentials work.
![](/Portals/0/Images/KB/RevindexStorefront/AvalaraAddressValidationGateway.png)
The system will attempt to validate the address for the selected country and if a valid match is found, it will automatically standardize the address format. The severity level determines how to treat an invalid address that cannot be automatically corrected by the system. High - Require user to correct the invalid address before proceeding further. Normal - Warn user of the invalid address, but allow the user to proceed. Low - Invalid address is silently accepted.