With Profile Merge Rules you get control over the data sets used for segmentation and can target a person accurately across multiple devices.
Typically, audience segmentation and targeting relies on data collected from all users on a device. Data collection and targeting based on device-level data has some disadvantages. For example, you cannot distinguish between multiple users who share a device or accurately target users across multiple devices. Device-centered data collection is no longer sufficient for digital marketing campaigns or cross-device targeting.
Profile Merge Rules fundamentally changes how Audience Manager collects data and segments users for targeting. It lets you work with 2 distinct types of profiles, a device profile and an authenticated profile.
A device profile is tied to an ID for a given device such as a cookie ID or mobile device ID. It includes:
The authenticated profile is tied to a user ID passed in when a person logs in to your site. It includes
These different profiles control the data you can use for segmentation. For example, with an authenticated profile, you can build accurate segments based on data from multiple devices for a single person. This means you can deliver a consistent brand experience to customers across multiple devices. Additionally, cross-device authentication allows Audience Manager to map the different platforms a person uses for their online activities. This is called the Profile Link Device Graph.
With Profile Merge Rules you can:
See the following sections and the FAQ for more information about Profile Merge Rules.