> For the complete documentation index, see [llms.txt](https://docs.hotwax.co/technical-implementations/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hotwax.co/technical-implementations/oms.md).

# OMS

- [Introduction](https://docs.hotwax.co/technical-implementations/oms/oms.md): Discover the importance of integrations in Order Management Systems (OMS) for enhancing efficiency.
- [Fulfilled Order Items](https://docs.hotwax.co/technical-implementations/oms/fulfilledorderitemsfeed.md): Learn how to utilize JSON feeds for retrieving fulfilled order items in OMS.
- [Returns](https://docs.hotwax.co/technical-implementations/oms/returns.md): Explore the structured process of handling returns in OMS, from creating return items to managing refunds.
- [Inventory Item Variance](https://docs.hotwax.co/technical-implementations/oms/inventoryitemvariancefeed.md): Learn about managing inventory item variances in OMS with JSON feed format.