About Profile Dimensions
A profile dimension is a set of logical conditions that is used to filter a customer population for targeting purpose. Dimensions are used to define a customer profile.
You can use many different types of dimensions, including: Activities, Past Purchases, Category Interests, Geographic Location, Gender, Custom Questions, Customers types, Customer Attributes, and Tiers. For details about each dimension and how to use it, see Profile Dimension: Definitions.
When defined and activated, a dimension tests the customer related data made available by transaction files, customer profiles, and customer email behavior records. Because this data changes over time, the list of customers selected by any given dimension also changes over time. The targeted segment is defined dynamically.