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Common Microsoft 365 questions
Short, direct answers to the Microsoft 365 licensing, capability, and coexistence questions admins actually type into search. Each links to the depth guide. 17 questions answered so far.
- Can I block Copilot from specific users or content in Microsoft 365?Yes on both counts. Copilot access is controlled per user by assigning or removing the Microsoft 365 Copilot licence. Content exclusion uses sensitivity labels that block Copilot processing, SharePoint Restricted Content Discovery, and specific Copilot-scoped exclusion controls in Purview.
- Can I mix Microsoft 365 E3 and E5 in the same tenant?Yes. Microsoft 365 plans are per-user licences, not tenant-level SKUs, so E3, E5, F1, F3, and Business Premium can all coexist in the same tenant. Tenant-scoped services (Purview policies, Sentinel connectors, Defender features) run at the level supported by the licensed users touching them.
- Can I use Intune without Entra ID P1?Yes for basic Intune device management, no for the enforcement mechanism most deployments actually rely on. Intune enrollment and configuration profiles work with the free Entra ID tier that ships with any Microsoft 365 subscription, but Conditional Access — which is how Intune compliance signals gate access to Microsoft 365 — needs Entra ID P1.
- Do I need a third-party backup for Microsoft 365?Usually yes, either Microsoft 365 Backup (the Microsoft add-on) or a third-party backup product. Microsoft 365 provides retention, versioning, and 93-day recycle bins that recover from routine deletion; it does not provide the point-in-time restore of a full mailbox, site, or OneDrive that most compliance frameworks and ransomware playbooks require.
- Do I need Microsoft 365 E5 for Conditional Access?No. Conditional Access needs Microsoft Entra ID P1, which is included in Microsoft 365 E3, Business Premium, and the F3 frontline plan. E5 adds Entra ID P2, which unlocks sign-in-risk and user-risk conditions via Identity Protection, plus Privileged Identity Management and access reviews.
- Do I need Teams Premium for webinars?No. Standard Microsoft Teams supports webinars up to 1,000 attendees with registration, reminders, and reporting. Teams Premium adds advanced webinar features (custom registration pages, green room, RTMP-out, presenter bios, view-only broadcasts up to 10,000 attendees), plus meeting-side features like watermarking and end-to-end encryption.
- Does Microsoft 365 back up my data?Not in the traditional backup sense. Microsoft 365 provides item retention, recycle bins, versioning, and preservation policies that recover from deletion or corruption inside the service, but it does not provide the point-in-time restore of a full mailbox, SharePoint site, or OneDrive that a backup product delivers. Microsoft 365 Backup is a Microsoft add-on that fills the gap for a per-GB fee; third parties (Veeam, Commvault, Barracuda, AvePoint, Rubrik, HYCU, Keepit, Redstor) do the same.
- Does Microsoft 365 Business Premium include Intune?Yes. Microsoft 365 Business Premium includes Microsoft Intune for device and app management, alongside Entra ID P1, Defender for Business, and the Office desktop apps. The 300-seat cap on the plan itself is the practical limit, not an Intune feature limit.
- Does Microsoft 365 comply with GDPR?Microsoft 365 provides the controls needed for a GDPR-compliant deployment and Microsoft signs the standard EU Data Protection Addendum as a data processor. Compliance itself is a shared responsibility: Microsoft runs the platform in line with its commitments, and the tenant is the data controller responsible for configuring retention, DSAR handling, DPIA records, and lawful basis for the data it stores.
- Does Microsoft 365 Copilot need a separate Microsoft 365 licence?Yes. Microsoft 365 Copilot is a per-user add-on that requires an eligible base licence: Microsoft 365 E3, E5, Business Standard, or Business Premium (Office 365 E3/E5 also qualify). It cannot be bought on its own or on frontline F1/F3 plans.
- Does Microsoft 365 E5 include Power BI Pro?Yes. Microsoft 365 E5 includes a Power BI Pro licence per user. Microsoft 365 E3 does not — E3 users need a Power BI Pro or Power BI Premium Per User (PPU) add-on, or the workspace they consume must be backed by a Fabric F-SKU capacity that grants free-user consumption.
- Does Microsoft Purview work with Google Workspace?Partially. Microsoft Purview eDiscovery, DLP, and Insider Risk Management have connectors that ingest Google Workspace mail, drive, and chat as a third-party data source for discovery and DLP. Sensitivity labels only apply to Microsoft file formats and PDF; they do not label native Google Docs, Sheets, or Slides in place.
- How many external guests can I add to a Microsoft 365 tenant?Entra ID allows up to 50,000 external user objects per paid Entra ID licence assigned in the tenant, which puts the ceiling far above what most organisations ever need. The practical limit is governance — access packages, sponsors, reviews, and lifecycle — not the SKU.
- Is Defender for Endpoint included in Microsoft 365 E3?No. Microsoft 365 E3 does not include Defender for Endpoint. It is included in Microsoft 365 E5, in the E5 Security add-on that sits on top of E3, or as a Defender for Endpoint Plan 1 or Plan 2 standalone per-user licence.
- Is Entra ID P2 worth it over P1?Entra ID P2 is worth it when Identity Protection risk-based Conditional Access, Privileged Identity Management for admin roles, access reviews, or Entitlement Management access packages are part of the operating model. Where those are not yet in scope, P1 covers the everyday Conditional Access, MFA, and self-service password reset needs.
- What is the difference between Microsoft 365 and Office 365?Office 365 is the productivity workload — Exchange Online, SharePoint, OneDrive, Teams, and the Office apps. Microsoft 365 is Office 365 bundled with Windows 10/11 Enterprise use rights, Entra ID (P1 in E3, P2 in E5), Microsoft Intune, and the security and compliance add-ons (Defender for Endpoint, Purview premium, PIM, Identity Protection at the E5 tier).
- What is the difference between Teams Essentials and Teams in Microsoft 365?Teams Essentials is a standalone Teams subscription for small businesses — chat, meetings, calling, and file sharing without a full Microsoft 365 tenant. Teams inside Microsoft 365 Business or Enterprise is tenant-integrated: it runs on the tenant's Entra ID, uses SharePoint for files and Exchange for calendars, and honours Conditional Access, DLP, and every other tenant policy.
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