import { Callout } from "zudoku/ui/Callout"; # What is 365 business Proxy Application? **365 business Proxy Application** is a powerful extension for Microsoft Dynamics 365 Business Central. It enables **secure and seamless access to local resources** – whether from the cloud (SaaS) or from On-Premises environments – fully aligned with the [*Universal Code Initiative*](https://www.microsoft.com/en-us/dynamics-365/blog/it-professional/2022/10/28/the-dynamics-365-business-central-universal-code-initiative-is-live). Whether it's **file systems**, **printers**, **storage lifts**, **scales**, or **card readers** – the flexible and extensible [plugin system](plugins.md) offers unlimited integration possibilities. ![365 business Proxy Application](/assets/images/365-business-proxy-application/proxy-application-logo.png) 365 business Proxy Application supports both **Microsoft Dynamics 365 Business Central SaaS** and **On-Premises deployments**. --- ## Components 365 business Proxy Application consists of three core components: | Component | Description | |------------------------------|-------------| | **Microsoft Dynamics 365 Business Central App** | App available on Microsoft Marketplace, installed directly in Business Central | | **Proxy Application Service** | Cloud service that securely mediates between the app and local clients | | **Proxy Application Client** | Local service that runs plugins and communicates with the cloud service | --- ## Architecture The solution is designed for **easy setup without complex firewall or network configurations**. The only requirement is an active **internet connection**. Data is transmitted securely using **TLS encryption** via **SignalR**. ![Proxy Application Architecture](/assets/images/365-business-proxy-application/proxy-application-architecture.png) The 365 business Proxy Application cloud service is hosted in Germany and stores no persistent data.
It acts as a broker, establishing an encrypted real-time connection to the Proxy Application Client. --- ## Requirements - **Operating System** - Windows 10 or later (64-bit) - Windows Server 2016 or later (64-bit) - **Software** - .NET 8.0 ### See also - [What is 365 business Proxy Application Client?](proxy-application-client-whatis.md) - [What are 365 business Proxy Application plugins?](plugins.md)