Checking the effectiveness of sales activities is an integral element of a marketing campaign. This allows the manufacturer to check whether the funds have been appropriately allocated and the ads have reached the selected target. Appropriate tools such as the Where-To-Buy widget are useful in this respect. The 100shoppers team is responsible for creating this solution. Its advantage is functionality because it allows for online campaign analysis, facilitates the purchasing process and provides a new source of customers for online stores. As you can see, the widget provides benefits not only to the manufacturer, but also to customers and distributors.