You can edit the name and lookback window for a custom segment, or the name of a CCPA opt-out of sale segment. The segment tags don’t change when you edit the settings.
In the main menu, click Audiences > Segments.
Hold the cursor over the segment row and click Edit.
Edit the segment information:
(Optional) Edit the segment Name.
Each segment name must be unique for the segment type.
(Custom segments only; optional) Edit the Segment Window, which is the number of days a user’s cookie stays in the segment.
Enter a value from one (1) to 365.