While looking at website visits generated from ads created in Upsales, you might notice a slight difference or mismatch, depending on where you're viewing the data.
The reason for the difference is likely because Website Visitors include all interactions, while statistics from Advertising only include actual visitors.
There might be a bot or similar that has interacted with your campaign. This might look like a website visit when looking at Website Visitors (or an external web analytics service such as Google Analytics).
However, looking at the results for your ad in Advertising, you'll notice there's a difference in the number of clicks. That's because only clicks from actual users are registered.