Create a segment

A forecast segment is a slice of targeted inventory that you use to create forecast adjustments or to revisit the forecast for important parts of your inventory.

Segments can target any component in the targeting selector. Once you create a segment, the targeting cannot be changed.

You can create segments from any of the three tabs on the "Traffic forecast" page.

Create a segment through the Forecast tab

1. Sign in to Google Ad Manager.
2. Click Inventory Traffic forecast.
3. Click the Forecast tab.
4. Click Targeting and update the targeting of your forecast.
5. Above the forecast graph, click Save as segment.
   If there’s already a segment with the same targeting, the Save as segment button is deactivated. On the right side of the screen, you’ll see the message, "Segment found that matches targeting." Click the link to see the existing segment’s details.
6. Name the segment and click Save.
   The details for that segment appear. Click All segments at the top to go to the "Segments" tab and be able to access the other tabs.

Create a segment through the Segments or Adjustments tab

1. Sign in to Google Ad Manager.
2. Click Inventory Traffic forecast.
3. Click the Segments or Adjustments tab.
4. Above the table, click New traffic forecast segment.
5. Name your segment and update the targeting.
6. There are two options for saving:
   • Click Save and return to the "Segments" tab.
   • Click Add forecast adjustment and follow the instructions to add a forecast adjustment.

See segment details

Click the new Segments tab near the top of the "Traffic forecast" page. You’ll see these columns: