
Microsoft-Decision-1 and Enterprise AI Governance (2026)
Microsoft-Decision-1 scores bounded choices; it does not grant authority. The identity, Purview, approval and evidence controls a tenant must own first.

Expert perspectives on SharePoint, Power BI, Azure, AI Governance, and Digital Transformation from enterprise consultants with Fortune 500 experience.
Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
The EPC Group blog collects the firm's working notes on enterprise Microsoft programs: Microsoft 365 and Copilot, Azure, Power BI and Fabric, Dynamics 365, security, governance and adoption. It is written for the architects, IT leaders and compliance owners who run those programs and need a specific decision explained rather than a product overview.
The newest articles across the whole blog, newest first — the same order as the RSS feed.

Microsoft-Decision-1 scores bounded choices; it does not grant authority. The identity, Purview, approval and evidence controls a tenant must own first.

How a Fabric capacity actually bills in October 2026 — CU hours and smoothing, the four throttling stages, capacity overage at three times pay-as-you-go, surge protection, OneLake storage, reservations and on-demand Spark — and the monthly operating model that keeps the invoice explainable, including the October 15 OneLake reporting change.

Copilot Studio governance as Microsoft ships it in October 2026: data policies, sharing limits, Entra Agent ID, the admin-center inventory, Purview audit, Copilot Credits caps and the agent register — nine controls in dependency order.

The 15% and 30% Copilot promos ended Sept 30. What remains funded for a Microsoft 365 Copilot pilot in FY27: the 500-seat voucher program, Copilot Business promos to Dec 31, growth margins, nonprofit stacks, and the usage-based billing dates.

Fabric IQ is in Copilot Chat, on-demand billing is spreading across Fabric, and Fabric reaches GA in GCC High on October 1, 2026. The seven decisions a CIO should settle before the next capacity renewal.

Copilot now ranks scoped answers on SharePoint column metadata (Sept 22), and Purview can archive files out of Copilot's index (MC1472601). The ten-item governance checklist.

Office LTSC 2021 loses support Oct 13, 2026 — the day Windows 10 ESU Year 1 ends and Year 2 doubles to $122/device. The four device paths and a three-week triage plan.

MC1476200 turns usage-based billing on by default for new Copilot Business purchases (Oct 19 direct, Dec 1 CSP). What is metered and the 12 controls to set first.
Model-agnostic AI inside Power Automate and Power Apps — routed AI steps, an AI Consensus Gate for contested decisions, human approval on every high-stakes action, and an auditable record of why a flow did what it did.

"Silent AI" ended January 1, 2026, when ISO generative-AI exclusions (CG 40 47/48) went live. Here is what six insurance carriers told me they now require before they will renew AI-touching coverage — and the four court cases driving it.

Build 2026 reshaped Fabric's TCO math. Honest F-SKU costs vs Power BI Premium, real payback periods from 12 client engagements, and the hidden cost lines Microsoft's calculator omits.

A CIO board-prep framework for Build 2026 with the 5 strategic decisions that must land in Q3-Q4 2026: platform standardization, Agent 365, governance posture, compute budget, ROI measurement.

Build 2026 for Azure architects: HorizonDB, Cosmos DB enhancements, the Foundry agentic app stack, and what to architect around when every workload becomes an agent endpoint. EPC Group walks through the new reference architecture and where governance lives.

Operations agents in Microsoft Fabric reached GA at Build 2026. They watch your pipelines, capacities, and Power BI workspaces, and act when SLOs slip. EPC Group lays out the operations-agent architecture and how it turns Fabric and Power BI into a self-healing analytics estate.

Web IQ inside Foundry IQ changes how AI search agents read public web content. EPC Group covers Answer Engine Optimization (AEO), Generative Engine Optimization (GEO), and the schema + content moves that get your brand cited by Copilot, ChatGPT, Perplexity, and Gemini in 2026.

Agent 365 went GA May 1. The SDK shipped at Build. MXC ties Entra, Purview, and Defender to every agent. EPC Group walks through the agentic governance stack and how the Governed AI on Microsoft framework maps to it, control by control.

Agent Mode is now the Microsoft 365 Copilot default. Cowork ships, Scout is live in Frontier, and the Copilot Super App is "coming this summer." EPC Group covers what is shipping, what is teased, and the adoption + governance motion that turns it into ROI.

The RTX Spark superchip and DGX Spark redefine local AI for Windows. Aion runs on-device, MAI runs in Foundry, and MXC ties them together. EPC Group lays out the secure-AI-dev architecture for healthcare, finance, and government workloads that cannot leave the boundary.

Microsoft introduced the MAI family — seven new in-house cloud models including MAI-Thinking-1 and MAI-Code-1-Flash. EPC Group decodes what owning a frontier reasoning model means for enterprises, and how to govern a multi-model future without your CRM giving four different answers.

Microsoft Foundry is the multi-model control plane Microsoft just confirmed with OpenAI, Anthropic, Mistral, DeepSeek, and MAI all on one platform. EPC Group reads the Foundry IQ, ACS, and ASSERT trust stack — and what governance to build around agents before they go to production.

Fabric IQ is GA. Semantic models, certified ontologies, and operations agents change how analytics works in 2026. EPC Group, founding member of the Power BI Beta Team, lays out the semantic-model certification work that has to happen before AI grounds on your data.
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