FlowStudio MCP — Connection References

Connection references wire a flow's connector actions to real authenticated connections in the Power Platform. They are required whenever you call update_live_flow with a definition that uses connector actions.

Structure in a Flow Definition

{
  "properties": {
    "definition": { ... },
    "connectionReferences": {
      "shared_sharepointonline": {
        "connectionName": "shared-sharepointonl-eeeeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee",
        "id": "/providers/Microsoft.PowerApps/apis/shared_sharepointonline",
        "displayName": "SharePoint"
      },
      "shared_office365": {
        "connectionName": "shared-office365-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "id": "/providers/Microsoft.PowerApps/apis/shared_office365",
        "displayName": "Office 365 Outlook"
      }
    }
  }
}

Keys are logical reference names (e.g. shared_sharepointonline). These match the connectionName field inside each action's host block.

Finding Connection References

Preferred method: call list_live_connections in the target environment. Use search to narrow results to the connector you need; newer MCP server versions return paste-ready templates.

matches = mcp("list_live_connections",
    environmentName=ENV,
    search="shared_sharepointonline")

conn = next(c for c in matches["connections"]
            if c.get("overallStatus") == "Connected"
            or c.get("statuses", [{}])[0].get("status") == "Connected")

conn_refs = {
    "shared_sharepointonline": conn.get("connectionReferenceTemplate") or {
        "connectionName": conn["id"],
        "id": "/providers/Microsoft.PowerApps/apis/shared_sharepointonline",
        "source": "Invoker"
    }
}
host = conn.get("hostTemplate") or {"connectionName": "shared_sharepointonline"}

Use host as the action-side inputs.host. Use conn_refs as update_live_flow(connectionReferences=conn_refs).

Fallback method: copy from an existing flow.

Call get_live_flow on any existing flow that uses the same connection and copy the connectionReferences block. The GUID after the connector prefix is the connection instance owned by the authenticating user.

flow = mcp("get_live_flow", environmentName=ENV, flowName=EXISTING_FLOW_ID)
conn_refs = flow["properties"]["connectionReferences"]
# conn_refs["shared_sharepointonline"]["connectionName"]
# → "shared-sharepointonl-eeeeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee"

⚠️ Connection references are user-scoped. If a connection is owned by another account, update_live_flow will return 403 ConnectionAuthorizationFailed. You must use a connection belonging to the account whose token is in the x-api-key header.

Passing connectionReferences to update_live_flow

result = mcp("update_live_flow",
    environmentName=ENV,
    flowName=FLOW_ID,
    definition=modified_definition,
    connectionReferences={
        "shared_sharepointonline": {
            "connectionName": "shared-sharepointonl-eeeeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee",
            "id": "/providers/Microsoft.PowerApps/apis/shared_sharepointonline"
        }
    }
)

Only include connections that the definition actually uses.

Common Connector API IDs

Teams Adaptive Card Dual-Connection Requirement

Flows that send adaptive cards and post follow-up messages require two separate Teams connections:

"connectionReferences": {
  "shared_teams": {
    "connectionName": "shared-teams-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
    "id": "/providers/Microsoft.PowerApps/apis/shared_teams"
  },
  "shared_teams_1": {
    "connectionName": "shared-teams-yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy",
    "id": "/providers/Microsoft.PowerApps/apis/shared_teams"
  }
}

Both can point to the same underlying Teams account but must be registered as two distinct connection references. The webhook (OpenApiConnectionWebhook) uses shared_teams and subsequent message actions use shared_teams_1.