This guide provides instructions on accessing and using the
[MMM Data Platform](https://developers.google.com/mmm-data-platform)
("MMM DP") as an alternative solution to the Google Ads API to export
performance platform cost data required for designing and running Geo-based
experiments (e.g. [Meridian GeoX](https://developers.google.com/meridian/geox)).
Note: Pulling cost data is generally only required for go-dark and holdback
studies. These instructions are for pulling cost data for **US-based experiments
by Designated Marketing Area (DMA) to minimize contamination**. Outside of the
US, geo granularity may differ per country and may not be directly applicable to
Meridian GeoX.

### About GeoX Experiments

Geo Experiments like
[Meridian GeoX](https://developers.google.com/meridian/geox) allows advertisers
to design, execute, and evaluate geo-targeted incrementality experiments. By
measuring campaign performance across matched geographic regions, GeoX provides
critical baseline and causal impact data to help refine media mix modeling (MMM)
and optimize marketing investments.

## Account Setup \& Access

### Register for an Account

- **Advertisers:** If you do not have an MMM DP account, start by registering using the [Registration Form](https://docs.google.com/forms/d/e/1FAIpQLSfI0-kbhQeVifng-LZ2luYAf4uFlMFuRbf3DNnFuG3RoX80rw/viewform).
- **Vendors/Partners:** Work with your Google POC for them to internally request a partner-level account.

### Granting Account Access

Once your account is set up, follow the instructions in the
[Access Guide](https://developers.google.com/mmm-data-platform/guides-v1/getting-started/getting-access)
to properly grant access to the MMM DP.