Managed Environments with VNets isolate Power Platform from the public internet

Did you know that Managed Environments can be wired into your Azure Virtual Network, so connector calls from Power Apps and Power Automate stop traversing the public internet entirely? For regulated workloads, this is the difference between “we can’t use Power Platform” and “this is approved by security.”

What VNet integration actually does

Without it, every connector call (SharePoint, SQL, REST APIs, custom connectors) leaves Power Platform’s public endpoints, hits the internet, and reaches your backend. Even if the backend is private, the request to reach it is exposed.

With VNet integration on a Managed Environment:

• Outbound connector traffic egresses through a delegated subnet in your Azure VNet.
• That subnet’s effective network rules apply — NSGs, private DNS, route tables, firewall.
• Backends (Azure SQL, Storage, Function Apps, App Services, on-prem via ExpressRoute) can be locked to private endpoints, with Power Platform on the allowed list.

In other words, your makers keep building flows the normal way, but the calls flow through your private network like any other internal app would.

What you need to enable it

1. A Managed Environment (Premium licensing or per-app premium plans).
2. An Azure subscription in the same region as your environment.
3. A delegated subnet in your VNet, dedicated to Power Platform (Microsoft.PowerPlatform/enterprisePolicies).
4. An enterprise policy in Azure that you bind to the environment via PAC CLI or Power Platform Admin Center.
5. Sufficient IP space — plan the subnet size for the number of expected concurrent calls.

A practical topology

• One Managed Environment per security boundary: Dev, Prod, Partner-facing. Each gets its own VNet subnet.
• DLP policies layered on top: enforce which connectors are allowed in each environment (e.g. block public SaaS connectors in the regulated environment).
• Private endpoints on every Azure data resource the environment talks to (Azure SQL, Storage, Key Vault).
• Conditional Access + named locations on the maker side, so only managed devices can author solutions in the regulated environment.

Pitfalls to plan for

• Region pairing. The VNet and the environment must be in compatible regions. Plan this before binding — switching later is painful.
• Subnet sizing. Underestimating IP needs causes mysterious throttling at scale. A /26 is a sane starting point for most enterprise environments.
• Operational ownership. Once the network is wired in, network outages affect Power Platform. Make sure your network team and Power Platform CoE both know who’s on-call.

Why this matters

Most “we can’t use Power Platform here” conversations in regulated industries — banking, healthcare, government — come down to network exposure of connector traffic. VNet integration removes that objection. It doesn’t make the platform itself private (the runtime is still SaaS), but it makes the data path private, which is what your security team actually cares about.