Kesslernity · M365 Copilot Field Guide
Which Copilot tool should I use?
Match your need to the right tool. Each row links to the full guide.
Updated July 8, 2026. Cost Management Dashboard and group/team-level cost reporting rolling out; Viva Insights spend view for GitHub Copilot in preview. · kesslernity.com
One rule before you start: Without the M365 Copilot paid add-on, only free-tier Copilot Chat is available — web-only, no Teams or SharePoint access. Exception: Copilot Chat within Outlook retains inbox and calendar grounding for all M365 users at no extra cost. Seat threshold applies. In tenants with more than 2,000 M365 seats, Copilot Chat in Word, Excel, PowerPoint, and OneNote requires the paid licence. The in-app tools listed below follow this rule. (MC1253858) All other tools below require the paid licence.
Licence baseline for this guide

Without the M365 Copilot paid add-on, only free-tier Copilot Chat is available — web search only, no M365 data access (except Copilot Chat within Outlook, which retains inbox and calendar grounding for all users at no extra cost). Every tool listed below marked "paid" requires the add-on.

What's new — June/July 2026: Copilot Cowork is now generally available and billed on usage (Copilot Credits, $0.01/credit pay-as-you-go), and the Work IQ APIs reached GA. If you build custom agents that ground in your M365 data via Work IQ, that usage is metered in Copilot Credits on top of the licence. A Cost Management Dashboard for allocating credits, setting spend policies, and picking prepaid vs pay-as-you-go is rolling out, along with group and team-level cost reporting for managers with five or more reports. A preview Viva Insights view for GitHub Copilot spend and usage is also in progress. The tools in the map below are unchanged. See our Copilot agent pricing reference for the full cost picture.
What data or content do you need to work with?
I need live data from my inbox, Teams, or calendar Email summaries, meeting recaps, recent activity
Copilot Chat
Chat Data Scope guide
Understand what Chat sees and why answers vary
I need answers from a specific file, email, or meeting Contract clause, meeting action items, email commitment
@ References
Context IQ guide
Type @ to pin a source — Copilot reads it first
I need to query across many documents repeatedly over time Project files, standards, contracts, compliance docs
Notebooks
Copilot Notebooks guide
Pin up to 300 files · query the set persistently
I need to draft, rewrite, or analyse content inside a document Word doc, PowerPoint deck, Excel spreadsheet
Office Apps
Word / PowerPoint / Excel guide
In-app Copilot · reads open doc automatically
I need notes, action items, or to catch up on a Teams meeting What was decided? What did I miss? Who owns what?
Teams Meetings
Teams Meetings guide
Transcript must be on · before / during / after
I need to draft, summarize, coach, or prep inside Outlook email Reply to a thread, coach tone, build a meeting brief from inbox
Outlook
Copilot in Outlook guide
Thread summary · Draft · Coaching · Meeting prep
What do you need to do with the output?
I need this output to run automatically on a schedule Monday pipeline, Friday competitive scan, daily briefing
Scheduled Prompts
Scheduled Prompts guide
GA · up to 10 per user · Outlook + Teams + Calendar
I need to share this output as a working document others can edit Briefing note, shared summary, collaborative draft
Pages
Copilot Pages guide
Snapshot only — not live-updated · Word export
I need the whole team to get consistent answers at scale Procedure questions, pipeline reviews, recurring report format
Agents
Copilot Studio Agents guide
Deploy once · @mention to use · no coding
How do I get better answers from any of the above?
Copilot keeps giving vague or off-target answers Output is too long, wrong format, wrong level of detail
Prompt Hygiene
Prompt Hygiene guide
Role · Task · Context · Format — all four
Copilot is not reading the right document or email Generic answer when you need a source-specific one
@ References
Context IQ guide
Reference explicitly — Copilot stops guessing
All guides in this series — 10 guides · plus Decision Map and Failure Triage · kesslernity.com