> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nerve.mattemena.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Analyze audience performance and overlap

> Compare supported audience breakdowns, interpret conversion and cost differences, and distinguish observed audience overlap from unverified estimates.

Ask Nerve to compare the audience data your connector can retrieve. Performance by audience and overlap between audiences are different questions and may require different data.

## Compare performance first

Choose a platform, account, objective, reporting period, and result definition. Ask the assistant which breakdowns are available before requesting demographic, placement, geography, or audience comparisons.

```text theme={null}
For Example Brand's selected account, check available audience
performance breakdowns for the last 30 complete days. Compare spend,
clicks, and purchase results using consistent definitions.
Flag low-volume or suppressed segments. Explain which findings are
measured and which are estimates. Do not change targeting.
```

## Ask about overlap separately

```text theme={null}
Check whether the current connector can measure overlap between
the named audiences. If it can, explain the source, scope, and limits
before retrieving the result. If it cannot, say so and suggest an
alternative investigation. Do not invent an overlap percentage.
```

A prompt called **Audience overlap analysis** does not establish that an overlap measurement is available for every platform or account. If the available evidence is campaign configuration or performance similarity, describe the conclusion as a hypothesis rather than a measured shared audience.

## Check interpretation

Small segments may have too little data to compare reliably. Some connectors can suppress demographic data for privacy. Do not assume the breakdown sums to the campaign total or that each segment represents unique people.

Keep currencies and conversion definitions consistent. Use the findings to propose a test with a clear hypothesis and review period. Review the exact audience and affected campaigns before approving any targeting or exclusion changes.


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