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AB-900 Study Guide

Domain 1: M365 Core Features & Objects

  • Welcome to Microsoft 365
  • Exchange Online: Mailboxes & Distribution
  • SharePoint: Sites, Libraries & Permissions
  • Microsoft Teams: Teams, Channels & Policies
  • Users, Groups & Licensing
  • Zero Trust: Never Trust, Always Verify
  • Authentication: Passwords, MFA & Beyond
  • Microsoft Defender XDR
  • Microsoft Entra: Your Identity Hub
  • PIM, Audit Logs & Identity Governance

Domain 2: Data Protection & Governance

  • Microsoft Purview: The Big Picture
  • Sensitivity Labels & Data Classification
  • Data Loss Prevention (DLP)
  • Insider Risk & Communication Compliance
  • DSPM for AI & Data Lifecycle
  • How Copilot Accesses Your Data
  • Responsible AI Principles
  • Compliance Manager & eDiscovery
  • Activity Explorer & Data Monitoring
  • Oversharing in SharePoint

Domain 3: Copilot & Agent Admin

  • What is Microsoft 365 Copilot? Free
  • What Are Agents? Free
  • Copilot vs Agents: When to Use Which Free
  • Copilot Licensing: Monthly vs Pay-as-You-Go Free
  • Researcher, Analyst & Real-World Use Cases Free
  • Managing Copilot: Billing, Monitoring & Prompts Free
  • Building Agents: Create, Test & Publish Free
  • Agent Lifecycle: Access, Approval & Monitoring Free

AB-900 Study Guide

Domain 1: M365 Core Features & Objects

  • Welcome to Microsoft 365
  • Exchange Online: Mailboxes & Distribution
  • SharePoint: Sites, Libraries & Permissions
  • Microsoft Teams: Teams, Channels & Policies
  • Users, Groups & Licensing
  • Zero Trust: Never Trust, Always Verify
  • Authentication: Passwords, MFA & Beyond
  • Microsoft Defender XDR
  • Microsoft Entra: Your Identity Hub
  • PIM, Audit Logs & Identity Governance

Domain 2: Data Protection & Governance

  • Microsoft Purview: The Big Picture
  • Sensitivity Labels & Data Classification
  • Data Loss Prevention (DLP)
  • Insider Risk & Communication Compliance
  • DSPM for AI & Data Lifecycle
  • How Copilot Accesses Your Data
  • Responsible AI Principles
  • Compliance Manager & eDiscovery
  • Activity Explorer & Data Monitoring
  • Oversharing in SharePoint

Domain 3: Copilot & Agent Admin

  • What is Microsoft 365 Copilot? Free
  • What Are Agents? Free
  • Copilot vs Agents: When to Use Which Free
  • Copilot Licensing: Monthly vs Pay-as-You-Go Free
  • Researcher, Analyst & Real-World Use Cases Free
  • Managing Copilot: Billing, Monitoring & Prompts Free
  • Building Agents: Create, Test & Publish Free
  • Agent Lifecycle: Access, Approval & Monitoring Free
Domain 3: Copilot & Agent Admin Free ⏱ ~15 min read

Managing Copilot: Billing, Monitoring & Prompts

The day-to-day admin work β€” assigning licenses, monitoring usage, managing billing, and governing how people use prompts. This is what Maya does every week.

Maya’s admin checklist

β˜• Simple explanation

Think of Maya as the manager of a gym membership programme.

She needs to: give members their access cards (assign licenses), track who’s actually using the gym (monitor adoption), make sure the monthly bill makes sense (manage billing), and set rules about what equipment is available (govern prompts and features).

If she gives everyone a card but nobody shows up, she’s wasting money. If someone runs up a huge bill on the premium equipment, she needs alerts. And if people are using the equipment unsafely, she needs policies.

That’s Copilot admin in a nutshell.

Microsoft 365 Copilot administration involves four core tasks: license assignment (who gets access), billing management (how you pay and control costs), usage monitoring (who’s actually using it and how), and prompt governance (managing saved prompts, sharing, and compliance).

These tasks are performed primarily in the Microsoft 365 admin center, with billing also flowing through Azure Cost Management for pay-as-you-go models. Monitoring extends to Copilot Analytics and optionally Viva Insights for deeper adoption analysis.

1. Assigning Copilot licenses

Two methods β€” the exam tests both:

Individual assignment (small scale or pilot)

  1. M365 admin center β†’ Users β†’ Active users
  2. Select the user β†’ Licenses and apps
  3. Check Microsoft 365 Copilot β†’ Save changes

Best for: Quick pilot access (e.g., β€œgive the CEO Copilot today”), testing with a small group.

Group-based assignment (recommended for scale)

  1. M365 admin center β†’ Groups β†’ Active groups
  2. Select the group β†’ Licenses
  3. Assign licenses β†’ select Microsoft 365 Copilot β†’ Save

Best for: Department rollouts. Everyone in the group gets Copilot automatically β€” new members inherit the license when added.

πŸ’‘ Exam tip: Individual vs group licensing

The exam often presents a scenario where an admin needs to β€œenable Copilot for the Marketing department.” The answer is almost always group-based licensing β€” not individual assignment. Individual assignment doesn’t scale and requires manual work for every new hire.

Watch for: Questions about removing access. With group-based licensing, you remove the user from the group β€” the license is automatically unassigned. With individual assignment, you must manually remove it.

2. Managing pay-as-you-go billing

Setting up pay-as-you-go is a two-step process:

StepWhereWhat You Do
Step 1: Create billing policyM365 admin center β†’ Copilot β†’ Billing & usage β†’ Billing policiesName the policy, link to Azure subscription, set user scope, define budget + alerts
Step 2: Connect to Copilot serviceSame page β†’ Pay-as-you-go services tabSelect the Copilot service (e.g., Copilot Chat) and attach your billing policy

Critical: Both steps are required. If you only create the policy but don’t connect it to a Copilot service, pay-as-you-go stays disabled for those users.

⚠️ Budget alerts β€” set these or regret it

When creating a billing policy, always set budget alerts:

  • 50% threshold β†’ early warning
  • 80% threshold β†’ investigate usage patterns
  • 100% threshold β†’ take action (review, restrict, or convert heavy users to monthly)

Without alerts, a project team that suddenly hammers Copilot (during year-end reporting, for example) can triple your monthly costs. The alerts go to email recipients you specify β€” include yourself AND finance.

3. Monitoring usage and adoption

This is where Maya answers: β€œAre people actually using Copilot? Is it worth the cost?”

Where to monitor Copilot usage
ToolWhat It ShowsWhere to Find It
M365 admin center reportsEnabled vs active users, usage by appReports β†’ Usage β†’ Copilot
Copilot AnalyticsAdoption trends, feature diffusion, user segmentsM365 admin center β†’ Copilot section
Viva InsightsDeeper adoption analysis, productivity impactViva Insights Copilot Dashboard
Azure Cost ManagementPay-as-you-go spend, cost trends, budget statusAzure portal β†’ Cost Management

The key metric: enabled vs active

  • Enabled users = people who have a Copilot license assigned
  • Active users = people who actually used Copilot in the reporting period

If you have 200 enabled but only 50 active, you’re paying for 150 unused licenses. Maya’s job is to close that gap β€” either by driving adoption or reallocating licenses.

πŸ’‘ Scenario: Northwave's monthly Copilot review

Maya runs her monthly check:

  1. M365 admin center β†’ Reports β†’ Copilot β€” 200 enabled, 142 active (71% adoption)
  2. Breakdown by app: Teams 89%, Outlook 76%, Word 45%, Excel 22%
  3. Action: Excel adoption is low β†’ schedule training for finance team
  4. Azure Cost Management β€” pay-as-you-go engineers used $1,200 (within $1,500 budget)
  5. Action: 3 engineers used it heavily β†’ consider switching them to monthly licenses (cheaper)

This monthly review cycle is exactly what the exam expects admins to do.

4. Managing prompts

Prompts are how users interact with Copilot. As an admin, you need to govern how prompts are saved, shared, and reused.

ActionWhat It MeansWhere
SaveUsers save effective prompts for reuse in their Prompt LibraryIn-app (personal)
ShareShare prompts with colleagues or M365 GroupsVia Microsoft 365 Groups
ScheduleSet prompts to run automatically (Copilot Scheduler)Copilot Scheduler
DeleteRemove prompts from the libraryPrompt Library
GovernAdmin controls who can share, what’s auditablePrompt Policies in admin center
ℹ️ Why prompt governance matters

Without governance, users might:

  • Share prompts containing sensitive instructions β€” β€œSummarise all salary data for the exec team”
  • Create misleading organisational prompts β€” prompts that look official but produce unreliable output
  • Bypass compliance β€” prompts that extract data in ways that violate DLP policies

Admin controls:

  • Prompt Policies β€” control who can share prompts and at what scope
  • Audit logs β€” track prompt creation, sharing, and usage in Reports β†’ Copilot Usage
  • Naming standards β€” encourage descriptive names so prompts are discoverable and trustworthy

Exam tip: The exam tests whether you know that prompt sharing and scheduling are admin-configurable β€” they’re not just user features.

Operational best practices

The exam also tests general admin best practices:

  • RBAC / least privilege β€” don’t make everyone a Global Admin. Use specific roles:
    • License Administrator β€” assigns licenses
    • Billing Administrator β€” manages billing policies
    • Compliance Administrator β€” manages prompt policies and audit
  • Group-based licensing for onboarding β€” new hires automatically get Copilot when added to their department group
  • Service health monitoring β€” check M365 admin center β†’ Service health for Copilot issues
  • Communication plans β€” tell users WHAT Copilot can do, train them on good prompts, set expectations

🎬 Video walkthrough

🎬 Video coming soon

Managing Copilot Day-to-Day β€” AB-900 Module 26

Managing Copilot Day-to-Day β€” AB-900 Module 26

~12 min

Flashcards

Question

What are the two methods for assigning Copilot licenses?

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Answer

1) Individual assignment β€” M365 admin center β†’ Users β†’ Active users β†’ select user β†’ Licenses and apps. 2) Group-based β€” assign to an Entra ID group, all members inherit automatically.

Click to flip back

Question

What two steps are required to enable pay-as-you-go Copilot billing?

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Answer

Step 1: Create a billing policy (link Azure subscription, set budget). Step 2: Connect the policy to a Copilot service (e.g., Copilot Chat) on the Pay-as-you-go services tab. BOTH are required.

Click to flip back

Question

What's the difference between 'enabled users' and 'active users' in Copilot reports?

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Answer

Enabled = have a license assigned. Active = actually used Copilot in the reporting period. A big gap between them means you're paying for unused licenses.

Click to flip back

Question

What four things can users do with prompts that admins need to govern?

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Answer

Save (to Prompt Library), Share (via M365 Groups), Schedule (via Copilot Scheduler), Delete. Admins control sharing scope and auditability through Prompt Policies.

Click to flip back

Knowledge Check

Knowledge Check

Maya set up a pay-as-you-go billing policy and linked it to an Azure subscription. But users still can't access Copilot. What did she miss?

Knowledge Check

Northwave has 200 Copilot licenses. Maya's report shows 200 enabled users but only 80 active users. What should she do FIRST?


Next up: Building Agents β€” hands-on: how to create Copilot Chat agents and SharePoint agents, step by step.

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Researcher, Analyst & Real-World Use Cases

Next β†’

Building Agents: Create, Test & Publish

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