Create a new segment
To learn how to create a new segment, please read this article
Set up a segment in an experiment
In the finalization panel of the editor, when launching your experiment, select “Target a segment” in the Targeting step.

The list of existing segments appears: select the segment you previously created.

Click on the “Details” icon to display the targeting conditions of the segment.

Click on the “Edit” icon to edit the segment in the Segment builder pop-in.

Click on the “Delete” icon to dissociate the segment from the experiment.

Click on “Proceed”: this segment is associated to your experiment.
Set up a segment in a personalization
Once a segment has been created, you just need to associate it to a personalization.
In the “Exposed segment” part of the personalization creation page, click on “Select an existing segment”.

The list of existing segments appears: select the segment you previously created.

A summary of the targeting conditions that make up this segment appears at the bottom of the pop-in.

Click on “Validate”: this segment is associated to your personalization.