The invisible plumbing; worth understanding before you commit to Copilot at scale.
The data layer beneath everything Copilot does. Microsoft Graph indexes content across the tenant; Work IQ extends it to third-party systems (Salesforce, ServiceNow, Confluence) via Graph connectors so Copilot can ground answers in non-Microsoft sources without exporting data.
Connectors are administratively heavy to set up. Each connector has its own quirks and refresh frequency. End-user visibility into which sources are actually being searched is poor.
Graph connectors require Microsoft 365 Copilot licences; some connectors require additional Power Platform capacity.