How to Connect Google Chat with Microsoft Teams

The Two Behemoths: Microsoft 365 vs Google Workspace

In the enterprise space, coexistence between Microsoft 365 and Google Workspace is incredibly common. Acquisitions merge different IT philosophies, or departments insist on specific toolchains (e.g., Marketing uses Google Docs; Finance uses Excel).

This results in a deeply divided chat environment: Microsoft Teams vs. Google Chat.

When these platforms don't talk, productivity grinds to a halt. Inviting a Google user as a "Guest" into Teams requires tenant switching (a terrible UX), and vice versa. The solution is native API federation.

Architecting the Bridge

Building a bridge requires deep integration with both the Microsoft Graph API and the Google Workspace API.

The Complexities of M365 and Google APIs

• Data Models: Teams uses a hierarchy of Teams > Channels > Messages. Google Chat uses flat Spaces. You must logically map a Google Space to a specific Teams Channel.
• Authentication: Both APIs require strict admin consent. Google requires a Service Account with Domain-Wide Delegation; Microsoft requires Azure AD Application permissions.
• Formatting Conflicts: Teams uses complex HTML payloads (including Adaptive Cards). Google Chat uses a custom markup and Card v2 format. A bridge must translate this syntax in real-time.

Connecting with SyncRivo

SyncRivo provides a managed infrastructure that handles these API complexities for you.

Step 1: Configure the Google Cloud Project

To enable the bridge, you must authorize SyncRivo to read/write to Google Chat.

1. Navigate to Google Cloud Console.
2. Enable the Google Chat API.
3. Create a Service Account and grant it chat.spaces.readonly and chat.messages scopes.

Step 2: Configure Azure Active Directory (Entra ID)

1. Navigate to the Azure portal.
2. Grant the SyncRivo Enterprise App admin consent for Microsoft Graph.
3. Ensure your Information Barriers (IB) policies allow external App integration.

Step 3: Map the Spaces and Channels

In the SyncRivo dashboard, define the channel mappings:

• Route Google Space: 'Global Marketing' ↔ Teams Channel: 'Marketing Dept > General'
• Route Google Space: 'IT Support' ↔ Teams Channel: 'IT Ops > Helpdesk'

Once synced, any message sent in the Teams channel surfaces in the Google Space in real time (typically within seconds), and vice versa.

Ensuring Compliance

Because bridging involves moving data between two massive cloud providers, security is paramount.

• Data Residency: SyncRivo is hosted in the US (Google Cloud us-central1); a DPA and sub-processor list are available for your GDPR assessment.
• eDiscovery: Message content is not stored on SyncRivo's normal relay path, and bridged messages are posted as regular messages on the destination platform, so Microsoft Purview and Google Vault capture them for legal holds on each side.

By federating the two platforms, IT admins can satisfy both camps, avoiding a forced, unpopular migration while keeping teams aligned.

Read the M365 & Google Workspace Migration Guide.