You can protect your inventory from providing user data for interest-based ads and retargeting. The protection will be only from non-Google demand sources. Follow these steps:
- Login to your GAM account.
- Go to Protections
- Click New Protections > Ad Content
- Give a name to the New Protection
- Go to inventory type select the medium where you want to control the ads, for example, Mobile App
- By default, all the inventory will be protected. If you want to protect a specific inventory then select the ‘Only Protect Specified Inventory’ option and add the targeting criteria.
- Go to ‘Blocks’ and find ‘Cookies and data uses (non-Google demand)’, click ‘Add’ next to it.
- Select the cookies or the data use whose ads you want to exclude.
- Click Update.