Not directly — Performance Max (PMax) doesn't let you force placements like "more YouTube, less Search" the way traditional campaigns do. It’s fully automated across Google’s inventory: Search, Shopping, Display, YouTube, Gmail, and Discovery.
However, there are ways to nudge or influence it toward a more YouTube-heavy delivery.
1. Use strong YouTube-style creative assets
If you want more video delivery, you need to feed PMax the kind of assets that belong on YouTube.
Upload at least one real, high-quality video ad (not Google’s auto-generated ones)
Format it like a YouTube ad: clear hook, branding early, call-to-action
Avoid “static image turned into video” slideshows — they don’t perform well
Without a video, Google will still show on YouTube, but with an ugly auto-generated creative — which you don’t want.
2. Build audience signals that resemble YouTube viewers
In your asset group, under Audience Signals, try:
Google uses these to decide which surface (YouTube, Display, etc.) your ad fits best.
3. Check your placements & adjust creatives accordingly
After a few days, go to: PMax Campaign → Insights → Asset group → Placements (bottom section)
This shows where your ads are actually running (YouTube channels, sites, apps, etc.)
If YouTube isn’t showing up much:
4. Alternative route: Run a YouTube-only campaign
If your real goal is YouTube-first control, consider running:
Then use PMax only for Shopping, Discovery, etc.
So, you can’t force PMax to show mostly on YouTube, but you can influence it by:
Supplying strong video assets
Adding video-engaged audiences
Reviewing placements and optimizing creative accordingly
