You must have administrator or manager access in AdMob and standard or administrative access in Google Ads to unlink your AdMob account from a Google Ads account.
Additionally, you must pause or remove all active campaigns before unlinking. Note that you won’t be able to access or view your past campaigns unless you link the same Google Ads account again.
Instructions
- Sign in to your AdMob account at https://apps.admob.com.
- Click Settings in the sidebar.
- Click the Linked services tab.
- In the Manage account links section, click in the Google Ads row.
- Click the toggle to unlink to a Google Ads account.