With new-to-brand metrics, you can measure orders and sales of your products generated from first-time customers of your brand on Amazon. These metrics allow you to track the number of first-time orders for products within your brand, the percentage of total orders that are new-to-brand orders, the total sales of new-to-brand orders and the percentage of total sales that are new-to-brand sales, all within a 12-month look-back window.
We recommend using new-to-brand metrics to supplement metrics like advertising cost of sales (ACOS) or return on ad spend (ROAS). For example, Sponsored Brands ads help drive brand discovery with shoppers in the discovery stage and help brands reach new customers. Driving first-time purchases can often cost more than driving repeat purchases, so ACOS or ROAS alone would not measure the impact of Sponsored Brands in growing your brand audience.