The Vertex integration calculates sales tax as part of the pricing operation. When the shopping cart is priced with a request to include tax pricing, Commerce Cloud sends the information to Vertex, which calculates the total tax amount and sends it in a response. The response breaks down the tax into individual components, for example, the total tax amount might include sales tax assessed by both the state and county.
Commerce Cloud makes two calls to Vertex:
When the shopper begins the checkout process, Vertex responds with the calculated tax amount.
When the order is submitted, Vertex responds with the calculated tax amount.
As part of the settlement process, Vertex updates the tax record with the date of shipment. Commerce Cloud is not involved in the settlement process.
