What is the default counting method for sales conversion activities?

The default counting method for sales conversion activities in Amazon Ad Server is "Once per session." This means that if a user completes the same conversion activity multiple times within a single browser session, it will only be counted once. This method helps to prevent inflated conversion numbers by attributing a conversion to a unique user interaction within a defined session. "Once per day" would count a conversion only once within a 24-hour period, regardless of how many sessions the user had, which is not the default. "Once per browser session" is effectively the same as "Once per session" in this context, but "Once per session" is the more precise and commonly used terminology within ad servers to define the period of user interaction.