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

# Configuration sheet: Channel Mapping tab

> What the Channel Mapping tab does and how it affects channel, subchannel, and attribution reporting

The Channel Mapping tab in the SourceMedium Configuration Sheet is where you define how orders and marketing activity should be routed into consistent **channels** and **subchannels**.

## What this tab impacts

* Channel-level reporting in dashboards
* Reconciling across platforms (e.g., Shopify vs dashboard) when filtering by channel
* Segmentation for new vs repeat customers and product performance

## Recommended starting point

* [How does channel mapping work?](/data-inputs/configuration-sheet/how_does_channel_mapping_work)
* [How can I create order channels and subchannels?](/data-inputs/configuration-sheet/how-can-i-create-order-channels-and-subchannels)