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teams.onChatMemberAdded subscribes to Microsoft Graph change notifications.

Example

automations/teams-on-chat-member-added.automation.ts

Options

Pass { chatId: "chat-id" }. chatId is the opaque provider ID. Optional account selects a Microsoft binding.

Event

Runs when a chat member is added. The event includes changeType, resourceType, resourceId, contextual team/channel/chat IDs, and normalized data when Graph still exposes the resource. Deletions are ID-only tombstones. Teams subscriptions are short-lived and Automate.ax renews them automatically.