Follow these steps to exclude the fraud0 Audience, you created in the previous step.
Login to your Facebook Business Manager Account
Go to Ads manager in the main navigation
Create a new campaign or exclude the fraud0 Audience from your existing campaigns
Select a chosen AdSet and click on Edit
Scroll down until you see the Audience section and search for the F0_Negative Audience to exclude the list from your campaigns
Click on Next and publish to save your campaign exclusion
Click Next → Publish → You did it!
From now on, fake and low-quality traffic will be excluded from your Facebook campaigns and your ad budget is protected.