> For the complete documentation index, see [llms.txt](https://docs.zephyrintel.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zephyrintel.com/analytics/aftermarket-sales-analytics.md).

# Aftermarket (sales) analytics

The Aftermarket Analytics tab shows sales performance by brand and model code, built from your organization's spare-sales history. Sales reps and account owners use it to find top-selling models, growing model lines, and revenue opportunities worth a call.

* [Read Best Sellers, Money Makers and Most Growth](/analytics/aftermarket-sales-analytics/read-best-sellers-money-makers-and-most-growth.md): How each ranking is computed, including the growth-trend slope.
* [Use the Model Performance table](/analytics/aftermarket-sales-analytics/use-the-model-performance-table.md): Sorting, pagination, and CSV export.
* [Read the Brand / Model Sales Share chart](/analytics/aftermarket-sales-analytics/read-the-brand-model-sales-share-chart.md): Inner ring brand, outer ring model code, hover details.
* [Understand unknown model/brand sales](/analytics/aftermarket-sales-analytics/understand-unknown-model-brand-sales.md): Why some sales cannot be matched to a model, and where they show up.

### Notes

This feature may not be enabled for your organization. Ask your Zephyr Intel contact.