> For the complete documentation index, see [llms.txt](https://support.ordereazi.com/central/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.ordereazi.com/central/apps/business-systems.md).

# Business systems

Apps that connect OrderEazi Central to your inventory system and your CRM, Cin7 Core and HubSpot.

If your stock lives in an inventory system, or your sales team works from a CRM (customer relationship management system), recapturing orders in both places costs time and causes mistakes. These apps connect OrderEazi Central to those systems, so each one has the same orders and clients. You install them from the [App Gallery](/central/apps/app-gallery.md).

* [**Cin7 Core**](/central/apps/business-systems/cin7-core.md)**:** An inventory system. The Cin7 Core app keeps products, stock, and documents in step between OrderEazi and Cin7 Core.
* [**HubSpot**](/central/apps/business-systems/hubspot.md)**:** A CRM. Each Quote you create in OrderEazi creates or updates a deal in HubSpot.

Your accounting system, such as Sage Evolution or Xero, is built into OrderEazi rather than added as an app. See [Accounting System](/central/order-management/integrations/accounting-system.md).

### Related pages

* [App Gallery](/central/apps/app-gallery.md): install, set up, and remove apps
* [Integrations](/central/order-management/integrations.md): connections built into OrderEazi