-
PMax will wander into some pretty junky placements if it thinks it can get cheap traffic there.
You can’t control it directly, but you can tighten it up with account-level placement exclusions, brand exclusions, and stronger audience and conversion signals so it stops chasing garbage clicks.
At the end of the day, judge it on CPA and revenue — if performance sucks and placements look bad, your signals probably aren’t strong enough yet.
