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.
Whether it's file systems, printers, storage lifts, scales, or card readers – the flexible and extensible plugin system offers unlimited integration possibilities.

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 AppSource, 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.

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