Your new bookshop client is running a campaign for its new training series that kicks off with a how-to brochure. They're using a counter tag within their Floodlight tags in Campaign Manager 360. Which counting method should you use if you want to measure how many users downloaded the brochure?

The Unique counting method is correct because it counts each user only once within a 24-hour period, regardless of how many times they download the brochure. This accurately reflects the number of individual users who performed the action. The Standard counting method counts every conversion, so if a user downloads the brochure multiple times, it would inflate the count beyond the number of unique users. Per session counting counts one conversion per user per session, which might still overcount if a user downloads the brochure multiple times within different sessions on the same day. Custom counting methods are for advanced scenarios and not typically used for simple unique user tracking.