> ## 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 FAQs

> Frequently asked questions about using the SourceMedium Configuration Sheet for costs, targets, and channel mapping

The Configuration Sheet is how you customize SourceMedium reporting without engineering work: mapping channels/subchannels, adding costs, and setting targets.

## Quick links

* [Configuration sheet load frequency](/help-center/faq/configuration-sheet-faqs/configuration-sheet-load-frequency)
* [How can I filter out samples, returns, and exchanges?](/help-center/faq/configuration-sheet-faqs/how-can-i-filter-out-samples-returns-and-exchanges)

## Related docs

* [Configuration Sheet overview](/data-inputs/configuration-sheet/config-sheet-overview)
* [Channel mapping: how does it work?](/data-inputs/configuration-sheet/how_does_channel_mapping_work)