> For the complete documentation index, see [llms.txt](https://docs.mediarithmics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mediarithmics.io/collaboration/collaborate-with-a-partner/measure-campaign-performance-with-third-party-data.md).
# Measure campaign performance with third-party data
What a Clean Room lets you measure about a joint campaign, and where the evidence stops.
## Your goal
Understand what a Data Clean Room lets you measure about a campaign run jointly with a partner, without either side exposing raw exposure or transaction data.
## What is documented
A Clean Room is described as a place where you can "measure the incremental sales, reach, or conversions generated by a joint campaign," and "analyze and measure campaign results (reach, frequency, …)." Two dataset types exist specifically to support this:
| Dataset type | Typical use case | Availability |
| ------------------- | ---------------------------------- | ------------ |
| **Campaign log** | Attribution and frequency analysis | On request |
| **Transaction log** | ROI and conversion analysis | On request |
Some Collaborative Apps name measurement outcomes explicitly as part of what they are for - for instance, letting a brand "measure whether their campaigns on your inventory drove incremental sales," or letting an advertiser "measure the duplication between their TV reach on your inventory and their digital reach." See [Clean Rooms](/collaboration/plan-and-integrate/setup-clean-rooms/clean-rooms.md#what-a-collaborative-app-is) for the full list.
Beyond onboarding a Campaign log or Transaction log dataset and matching it like any other dataset (see [Analyze cross-partner behavior](/collaboration/collaborate-with-a-partner/analyze-cross-partner-behavior.md)), the resulting reach, frequency, incrementality, or attribution figures are delivered through **Insights dashboards built by the mediarithmics team on request** - there is no documented self-service measurement dashboard specific to campaign performance.
{% hint style="warning" %}
Campaign log and Transaction log datasets are on-request rather than self-service. Contact your Account manager to scope a measurement use case before assuming it is available in your environment.
{% endhint %}
{% hint style="info" %}
Measuring a campaign's performance **without** third-party data - tracking, attribution models, funnels, and A/B testing - is documented in the `Measurement & Attribution` section.
{% endhint %}
## Related pages
Analyze cross-partner behavior
Insights and match rate, common to every matching.
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