Opensense supports deployment in Microsoft 365 Government Community Cloud (GCC) High environments, which are isolated, non-routed solutions designed for federal agencies and organizations handling sensitive government data.
Key Requirements
Exchange Online or Microsoft 365 running minimum version 2104 (Build 13929.20296) with API v1.10 support
Modern Authentication must be enabled for secure communication
Custom manifest deployment using the GCC High-specific manifest URL
Azure AD enterprise application for directory synchronization in the isolated environment
Deployment Overview
Unlike standard commercial Microsoft 365 environments, GCC High requires:
Custom Add-in Deployment: The add-in must be manually deployed through the Microsoft 365 admin center Add-ins section using a GCC High-specific manifest file, rather than through the standard Integrated Apps portal
Dedicated Directory Sync Tool: A specialized Azure AD enterprise application ("Opensense GCC High Directory Sync tool") is required to securely synchronize directory information within the isolated GCC High environment
Portal Configuration: The Opensense Portal must be configured with the "Office 365 GCC High" toggle enabled to ensure proper routing and authentication
Proxy Allowlisting: Organizations using web proxies (such as zScaler) must allowlist specific Opensense domains to enable the add-in to function properly
Mobile Add-in Considerations
In GCC and GCC High environments, mobile add-ins are disabled by default. Administrators may need to modify tenant configuration settings using Exchange Online PowerShell to enable mobile add-in functionality. See Using the Outlook Mobile Add-in within GCC Environments for details.
Implementation Support
Due to the specialized nature of GCC High deployments and the security requirements involved, Opensense provides dedicated implementation support. Contact your Opensense representative or support team at help@opensense.com for assistance with GCC High deployment.