What is a Segment? A Segment is a way to limit your users down to a specific set of users based on who they are or what they have done. The output of a segment is always a set of users. This guide will show the primary parts of building a segment.
Describing a Customer and Their Behavior
There are three principles to understand that will enable you to build any segment you want.
Who is a customer? A customer can have certain attributes, what they are or are not. Examples of these are name, email, and gender. These are things that don't have a time period associated with them.
What have the customers done? A customer can do (or not do) different engagements with your company. Examples of these are orders, email opens, visit website, open a ticket, etc... These are things that do have a time period associated with them. Read more about Segmenting on User Behavior.
Does the customer belong to another segment or list? Once you have a segment or list built you may want to re-use that in future segments so that you don't have to build it over and over again. For example, my "Email Engagers" could be defined as customers that have opened an email in the last 30 days. I could create another segment defined as customers that have visited my website in the last 7 days and are "Email Engagers" by using the previous segment.