Shared Channels with External Members

The question it answers: Which Teams shared channels are shared with other organisations’ teams or with external people?

Shared channels (Teams Connect) let people from other organisations work inside a channel without switching tenants - and without appearing as guests in your directory. Their files live in your SharePoint. Channels shared with other organisations’ teams or with external people are listed first.

Note

One scan fills both Teams Apps and Shared Channels: two to four Graph calls per team, six teams at a time. Large tenants take several minutes. Whether external people can join at all is set by cross-tenant access (B2B direct connect) - see Cross-tenant Access & B2B Trust.

At a glance

Where in the app	Tenant › Shared Channels (external)
Workload	Teams and collaboration
Kind	Table · dashboard tile
Data	A scan: it runs only when someone presses Run scan (or calls the API’s scan action) and can take minutes. The last result is kept until the next scan.
Licence	Microsoft Teams.
Report id (API and MCP)	tenant.teams.shared-channels

Columns

Column	Key	Type
Team	Team	Link
Channel	Channel	Text
External tenants	ExternalTenants	Status
External people	ExternalMembers	Text
Internal people	InternalMembers	Text
Shared with teams	SharedWithTeams	Text
External members	ExternalMemberList	Text
Created	Created	Date

Filters

Filter	Key (API)	On when the page opens
Only channels shared with other organisations	external	Yes

What it needs

Licence: Microsoft Teams.

Application permissions on the IntensiveReports app registration (all permissions):

Permission	API	What it allows	Note
Group.Read.All	Microsoft Graph	Read all groups
Organization.Read.All	Microsoft Graph	Read organization information
TeamsAppInstallation.ReadForTeam.All	Microsoft Graph	Read installed Teams apps for all teams
Channel.ReadBasic.All	Microsoft Graph	Read the names and descriptions of all channels
ChannelMember.Read.All	Microsoft Graph	Read the members of all channels

Data sources it reads

• GET /v1.0/groups?$filter=resourceProvisioningOptions/Any(x:x eq 'Team')
• GET /v1.0/teams/{id}/installedApps?$expand=teamsApp,teamsAppDefinition
• GET /v1.0/teams/{id}/channels?$filter=membershipType eq 'shared'
• GET /v1.0/teams/{id}/channels/{id}/sharedWithTeams
• GET /v1.0/teams/{id}/channels/{id}/members

Through the API and MCP

GET /ir-api/v1/reports/tenant.teams.shared-channels?size=100
GET /ir-api/v1/reports/tenant.teams.shared-channels?filter=external
POST /ir-api/v1/reports/tenant.teams.shared-channels/scan

An AI assistant reads it with the MCP tool get_report and the id tenant.teams.shared-channels. The client needs the Run scan grant for Teams and collaboration. See Using the API.