Avalara's AvaTax service requires that addresses are both recognized and precise in order for them to provide accurate sales tax calculations. Accordingly, Avalara provides a service for address validation.
If enabled in the connector settings, a Validate link is seen in Brightpearl when editing an address against a contact record.
Clicking the link will send the selected address to Avalara and return the validated address.
The response includes error messages if there are any issues validating the address.