Advantage+ placements don’t allow manual exclusion of individual placements. That said, you can still influence Meta's delivery:
Optimization Strategies
Break Out Campaigns
Create a separate campaign with manual placements (e.g., Facebook Feed, Instagram Reels only) and exclude Audience Network entirely.
Use this to compare performance side-by-side.
Monitor Placement Performance
Optimize for Quality Events
Use Cost Controls
Upgrade Creatives
Important Note:
You can’t selectively block placements inside Advantage+—so if Audience Network consistently underperforms, you’ll need to test a manual placement campaign or let Meta optimize and cap spend using cost controls.