The list of sites that are available when you create a new message is sourced directly from the sites list in AdSense.
- To add an site to Privacy & messaging, complete the steps to add a new site to AdSense. After the site is added, you may need to wait a few minutes for the list to update.
- To remove an site from Privacy & messaging, complete the steps to hide a site from AdSense. Be aware that removing a site stops all ads serving on the site.
Sites that have been removed or deleted can't display messages to users. If you have removed or deleted a site from the AdSense sites list and want to display messages to its visitors, add the site again in AdSense.