Spotted by Dario Zannoni
Google Ads is introducing Campaign Mix Experiments (Beta) — a highly anticipated testing feature that allows advertisers to measure the incremental impact of different campaign combinations across multiple campaign types.
With Campaign Mix Experiments, you can run controlled experiments that compare how different campaign setups perform together, rather than evaluating each campaign type in isolation.
What can you test?
This beta enables testing combinations such as:
- Search + Performance Max
- Search + Demand Gen
- Search + Performance Max + Demand Gen
Instead of asking whether a single campaign “works,” this approach helps answer a more strategic question:
What is the optimal mix of campaign types to drive incremental results?
Why this is important
Until now, advertisers largely relied on:
- Platform-reported attribution
- Directional tests with limited control
- Gut feeling and experience
Campaign Mix Experiments introduce statistically valid, controlled testing within Google Ads, making it possible to:
- Measure incrementality rather than blended performance
- Understand cannibalization vs. true lift
- Make budget allocation decisions based on data instead of assumptions
What to watch closely
As this is still in beta, the real value will depend on:
- How much flexibility advertisers get in experiment setup
- How cleanly traffic is split between test and control groups
- The level of transparency in reporting and methodology
If this flexibility holds up, Campaign Mix Experiments could become one of the most powerful experimentation tools inside Google Ads, especially for advertisers managing complex, multi-channel account structures.