What should a Microsoft 365 support review examine beyond individual user issues?

A Microsoft 365 support review should assess the tenant as a connected business system, not simply examine individual tickets. It should establish how the environment is structured, who controls it, how changes are governed, where risks and dependencies exist, and whether support processes are producing reliable evidence for informed decisions.

Start with an accurate environment inventory. The review should confirm which services are in use, which domains and subscriptions are connected, where business data is held, and which external systems depend on the environment. This inventory should include shared mailboxes, collaboration spaces, automation accounts, guest access, third-party integrations and service accounts. Unknown dependencies can cause disruption when an account, licence, connector or policy is changed.

The inventory should also distinguish between services that are actively used and those that remain enabled without a clear business purpose. Unused configurations, abandoned workspaces and obsolete integrations can increase administrative overhead and create avoidable security or compliance exposure.

Examine the control structure rather than isolated settings. A useful review considers whether related settings work together. For example, identity verification, access conditions, device requirements and administrator permissions should form a coherent control model. Checking each setting independently may miss gaps caused by conflicting rules, exclusions or undocumented exceptions.

The reviewer should document the intended baseline, identify deviations and record the reason for each exception. Exceptions should have an owner, a business justification and a review date. This prevents temporary workarounds from becoming permanent parts of the environment.

Review identity and administrative governance. The assessment should map administrative roles to actual responsibilities and verify that privileged access is limited to the people and tasks that require it. It should look for dormant accounts, excessive permissions, unmanaged guest accounts, shared credentials and emergency access arrangements that have not been tested or documented.

It should also assess how access changes when someone joins, changes role or leaves the organisation. This is broader than checking whether one user can sign in: the review should test whether the underlying process consistently removes access to applications, groups, files, mailboxes and connected services when it is no longer required.

Assess configuration drift and change control. A tenant can gradually diverge from its approved design as administrators apply fixes, enable features or respond to incidents. The review should compare current settings with documented standards, examine recent changes and identify configurations that have no recorded owner or rationale.

Change records should show what was changed, why it was needed, who approved it, what dependencies were considered and how the result was verified. Where practical, changes should be assessed in a controlled test area or against a defined pilot group before they affect the wider organisation. The review should also check whether unsuccessful changes can be reversed safely.

Look for patterns in support and service data. Individual tickets rarely show the full operational picture. A review should group incidents by cause, workload, location, device type, access method or dependency to identify recurring faults. Repeated sign-in problems, message delays, permission errors or synchronisation failures may indicate a common configuration or architectural issue rather than separate user mistakes.

Useful evidence includes ticket trends, audit records, service notifications, change logs, monitoring information and documented incident reviews. The aim is not merely to count requests, but to establish whether the same underlying problem is being resolved or repeatedly treated as a one-off.

Check how information is governed across the environment. The review should establish who owns important data, collaboration areas and shared resources. It should examine external sharing, access inherited through groups, inactive accounts, unmanaged storage locations and the treatment of information when a project or employee no longer requires it.

Retention and deletion rules should be matched to the organisation’s legal, contractual and operational requirements. The reviewer should confirm that policies are understood, exceptions are recorded and relevant records can be located when needed. Governance should be practical enough to support normal work without creating uncontrolled copies or unclear ownership.

Evaluate service dependencies and resilience. Microsoft 365 may depend on domain records, identity services, network connectivity, endpoint configuration, authentication methods and external applications. A review should document these dependencies and identify what would happen if one became unavailable or misconfigured.

Recovery arrangements should cover more than the existence of a backup product or exported data. The organisation should know which information and services are business-critical, who can authorise recovery actions, where recovery instructions are stored and how restoration would be validated. Recovery exercises or evidence from previous tests should be examined, with gaps assigned to named owners.

Consider licensing as part of service design. Licence allocation should be compared with actual use, job requirements and security or compliance needs. The review should identify unused assignments, duplicated capabilities, inappropriate licence types and features that are enabled without a clear operational purpose.

It should also assess the effect of organisational change. A licence model that suited a smaller team may no longer fit after recruitment, restructuring, acquisitions or the introduction of new working practices. The result should be a documented allocation model, not simply a list of currently assigned licences.

Test whether governance works in practice. Policies and diagrams are not sufficient evidence on their own. The review should sample real accounts, groups, devices, service requests, changes and recovery records to confirm that documented processes are being followed. It should compare intended outcomes with operational evidence and highlight where responsibilities are unclear.

The final report should separate urgent risks from longer-term improvements and explain the effect of each finding. A useful action plan identifies the issue, business impact, recommended control, responsible owner, dependencies and target review point. It should also record accepted risks so that decisions remain visible rather than being lost in support correspondence.

In this form, a Microsoft 365 support review becomes a structured assessment of the organisation’s operating model. It reveals weaknesses that individual user troubleshooting cannot show, while giving decision-makers a practical basis for prioritising security, governance, service reliability and future changes.