> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kameleoon.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Set up a segment in a campaign
> Associate a targeting segment with an experiment or personalization to control which visitors are included in your campaign.
## Create a new segment
[To learn how to create a segment, read this article](./create-a-segment)
## Set up a segment in an experiment
In the finalization panel, select **Target a segment** in the **Targeting** step.
In the list of existing segments, select the segment you created.
Hover over the **information** icon to display the segment's targeting conditions.
Click the **X** icon to dissociate the segment from the experiment.
To associate a segment, you can also select **Target specific visitors** in the **Targeting** step. Select the segment and connectors you need. Using this option allows you to create quickly targeting conditions without re-creating a segment.
Click **Next**—this segment is associated with your experiment.
## Set up a segment in a personalization
Once a segment has been created, you must associate it with a personalization.
In the **Targeting** step, click **Target a segment** in the **Segments** panel. Then, click the segment you want to target.
The segment your experiment is targeting displays at the top of the page. Proceed with [finalization](../../experimentation/web-experimentation/configure-and-launch/finalizing-an-experiment) normally.