How is the billing address related to a payment done on the webstore using avalara as payment processor profile?

AI generated answer (using internal Slack threads):

The billing address in a webstore transaction using Avalara as a payment processor profile is crucial for tax calculation purposes. Avalara uses the billing address to determine the appropriate tax jurisdiction and calculate the correct tax amount for the transaction. In the context of a sales order, the billing address can be different from the shipping address. For instance, a customer might want the product to be installed at a different location (shipping address), but the invoice should be sent to their official address (billing address). In such cases, Avalara will still use the billing address for tax calculation. In terms of Dunning emails, these are typically sent based on the billing address. This means that even if the invoice is raised against different legal entities, the Dunning emails would be sent to the email address associated with the billing address. This requires an email address field to be added to the address records, or a custom field like "Dunning Email" to be added to the invoice. Lastly, if a user enters a new billing address, it can be determined through scripting. By keeping track of the current customer's addresses in a client script, you can infer if a new address was chosen if the billing address field has an id that is not in the list of current addresses. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******