You can collect your own first-party audience data by creating and implementing a custom DSP segment. You can use the segment to track a) users exposed to ads from desktop and mobile devices and b) users who visit specific webpages. You can later retarget users in the segment with additional ads or prevent users in the segment from receiving additional ads.
To track users IDs from consumer opt-out-of-sale requests on your website, per the California Consumer Privacy Act (CCPA), create a CCPA opt-out-of-sale segment.
Create the segment:
In the main menu, click Audiences > Segments.
Above the data table, click Create.
Enter a unique Segment Name.
For the Segment Type, select Custom.
Enter the Segment Window, which is the number of days a user’s cookie stays in the segment.
The default window is 45 days. Enter a value from one (1) to 365.
Copy and implement tags to track the segment, as needed:
Return to Audiences > Segments.
Hold the cursor over the segment row and click Get Pixel.
To track desktop and mobile visitors to a webpage:
Copy the page view tracking tag, which is labeled “Desktop or mobile websites.”
Provide the tag to the advertiser or website contact for deployment.
The advertiser’s IT department or other group may need to schedule, or be informed about, the tag deployment.
To track users exposed to an ad unit on desktop or mobile devices:
Add the tag to either the Pixel tab for each relevant ad or to the Event Pixels section of the Tracking settings for each relevant placement.
Once a tracking tag is implemented, you can use the segment in the audience targets or exclusions for any placement.
Keep track of the segment size as users are tracked.