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

# Create UTM mapping

> Learn how to map UTM parameters to the correct channels and channel groups in Dema to ensure accurate attribution and cost mapping.

## Why UTM mapping matters

Setting up UTM mappings is essential for ensuring that traffic sources and costs are attributed correctly. By cleaning and organizing UTM parameters, you can:

1. **Map costs from ad platforms**: Align traffic from campaigns with costs fetched from platforms like Meta and Google Ads.
2. **Simplify reporting**: Eliminate messy or inconsistent UTM parameters to streamline attribution.
3. **Accurately track performance**: Ensure all traffic matches the intended channels and channel groups.

<Info>
  Unmapped UTM parameters may result in incorrect or missing channel attribution. Take the time to map these for better insights.
</Info>

<Info>
  For guidelines on creating UTM parameters that align with best practices, refer to our [UTM parameters setup guide](/guides/setup/utm-parameters).
</Info>

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## How to set up UTM mappings

<div class="container">
  <iframe src="https://demo.arcade.software/GN7xvUQE8zfzecTzUauS?embed&embed_mobile=inline&embed_desktop=inline&show_copy_link=true" title="Create mappings" frameborder="0" loading="lazy" webkitallowfullscreen mozallowfullscreen allowfullscreen allow="clipboard-write" class="responsive-iframe" />
</div>

1. Navigate to **Settings → Mapping** in the Dema platform.
2. Under the **Unmapped traffic** tab, click on any UTM parameter you wish to map.
3. On the right-hand side, select:
   * **Channel Group**: E.g., "Social Paid," "Search Paid."
   * **Channel**: E.g., "Meta," "Google."
4. Click **Create Mapping** to save.

<Info>
  You can create mappings based on:

  * A single parameter (e.g., `utm_source=google_ads`).
  * A combination of parameters (e.g., `utm_source=google_ads` + `utm_medium=sem`).
</Info>

***

## Reviewing existing mappings

1. Switch to the **Existing mappings** tab to view all previously created mappings.
2. Edit or remove mappings as needed to keep your attribution rules up to date.

***

## Example use case

If `utm_source=google_ads` and `utm_medium=sem` are mapped to **Channel Group: Search Paid** and **Channel: Google**, all traffic with these parameters will be attributed correctly under this group and channel.

Similarly, mapping `utm_source=facebook_ads` and `utm_medium=paidsocial` to **Channel Group: Social Paid** and **Channel: Meta** ensures accurate attribution for your paid social campaigns.

<Info>
  **Tip**: Regularly review and update your mappings to account for new campaigns or traffic sources.
</Info>