generated: '2026-06-20'
method: derived
source: openapi/microsoft-teams-graph-api.yaml
description: >-
  Entity-relationship model derived from the Microsoft Graph Teams OpenAPI
  schemas and path hierarchy. Relationships are inferred from nested path
  segments (team -> channel -> message/tab) and id-reference fields.
entities:
  - name: Team
    id_field: id
    description: A Microsoft Teams team (backed by a Microsoft 365 group).
  - name: Channel
    id_field: id
    description: A channel within a team.
  - name: ChatMessage
    id_field: id
    description: A message posted in a channel (or chat).
  - name: TeamsTab
    id_field: id
    description: A tab pinned in a channel.
  - name: TeamsAppInstallation
    id_field: id
    description: An app installed in a team.
  - name: ConversationMember
    id_field: id
    description: A member of a team or channel.
  - name: OnlineMeeting
    id_field: id
    description: A scheduled or ad-hoc online meeting.
  - name: Call
    id_field: id
    description: A real-time VoIP/group call.
relationships:
  - from: Team
    to: Channel
    type: has_many
    via: "/teams/{team-id}/channels"
  - from: Team
    to: ConversationMember
    type: has_many
    via: "/teams/{team-id}/members"
  - from: Team
    to: TeamsAppInstallation
    type: has_many
    via: "/teams/{team-id}/installedApps"
  - from: Channel
    to: ChatMessage
    type: has_many
    via: "/teams/{team-id}/channels/{channel-id}/messages"
  - from: Channel
    to: TeamsTab
    type: has_many
    via: "/teams/{team-id}/channels/{channel-id}/tabs"
  - from: ChatMessage
    to: ConversationMember
    type: belongs_to
    via: from.user (author)
  - from: Channel
    belongs_to: Team
    type: belongs_to
    via: team-id
  - from: OnlineMeeting
    to: ConversationMember
    type: has_many
    via: participants
  - from: Call
    to: ConversationMember
    type: has_many
    via: participants / source / targets
notes:
  - Team id is also the id of the underlying Microsoft 365 group.
  - Channel messages and tabs are addressed only within their parent channel/team path.