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  - Sits alongside Fabric IQ (business entities and data in Microsoft Fabric) and Foundry IQ (managed knowledge grounding) as the three "IQ" layers.
  - Shares context across agents, so a delegated agent inherits relevant working context instead of starting blind.
  - Part of the wider Agent 365 and "Frontier Firm" positioning; some capabilities are still rolling out through 2026.
+ - Extended in September 2026 to explicitly include business and workflow data from Dynamics 365 and Power Platform, not just Microsoft 365 productivity data. The concrete piece of this — semantic models, reusable business skills and governed write-back actions — enters public preview 30 September 2026, landing first in Dynamics 365 Sales and Customer Service, with Finance and Operations following in late October 2026. The developer-facing surface for this is the [Dataverse Ask APIs](https://365-almanac.app/kb/dataverse/feature-ask-apis-semantic-models) in the Dataverse KB.
  
  ## When to use / skip
  You don't switch Work IQ on and off; it's the substrate Copilot runs on. The real decision is whether to build custom agents on top of it. Do that when a workflow is repetitive, org-specific and benefits from knowing the person and their recent work. Skip the custom-agent route for one-off tasks where stock Copilot chat already has the context in front of it.