Migration to Microsoft 365 — an action plan

Audit

This section frames the topic "Audit" in the context of Migration to Microsoft 365 — an action plan. We approach it from the business side — what concrete value or risk it brings to the company.

What you gain

• Higher team productivity without buying additional tools.
• Central management of accounts, permissions and devices.
• Built-in security (MFA, Conditional Access, DLP) included in the Premium licence.

Most common mistakes

• Assuming Microsoft backs up your data (it does not — that is on you).
• SharePoint file chaos without agreed structure and permission rules.
• Buying extra tools whose features are already in Business Premium.

Pilot

This section frames the topic "Pilot" in the context of Migration to Microsoft 365 — an action plan. We approach it from the business side — what concrete value or risk it brings to the company.

What you gain

• Higher team productivity without buying additional tools.
• Central management of accounts, permissions and devices.
• Built-in security (MFA, Conditional Access, DLP) included in the Premium licence.

Most common mistakes

• Assuming Microsoft backs up your data (it does not — that is on you).
• SharePoint file chaos without agreed structure and permission rules.
• Buying extra tools whose features are already in Business Premium.

Mail migration

A smooth rollout of Microsoft 365 is not a one-off action — it is a project in 4 phases. Cutting them short "to go faster" is the shortest path to an outage.

Phase 1: Audit and dependency map

We inventory systems, integrations, licences, accounts and users. The output is a list of what can be moved as is, what needs a refactor and what should be sunset.

Phase 2: Pilot

We pick one team (5–15 people), migrate them under controlled conditions and collect feedback. Findings feed back into the main plan.

Phase 3: Main migration

Rolled out in waves (typically 30–50 people per week), always with a helpdesk on standby on day one after cutover. Data, mail and permissions migrate before the users, not with them.

Phase 4: Reinforcement

Training, documentation, procedures and handover to steady-state operations. Without this phase the investment quickly loses value, because the knowledge stays in the heads of 2–3 people.

OneDrive/SharePoint

Modern IT security works in layers. No single solution protects a company 100% — only a full set of layers (identity, endpoints, network, data, people) provides real effect. In the context of Migration to Microsoft 365 — an action plan it is worth starting with the basics:

• MFA on all accounts (no exceptions for the board — the most common gap).
• EDR/XDR instead of classic antivirus — it detects behaviour, not just signatures.
• Backups in several locations, including an offline or immutable copy — ransomware cannot encrypt them.
• Patches within 14 days of the vendor's release.
• Anti-phishing training at least quarterly, with simulations.

Cutover

This section frames the topic "Cutover" in the context of Migration to Microsoft 365 — an action plan. We approach it from the business side — what concrete value or risk it brings to the company.

What you gain

• Higher team productivity without buying additional tools.
• Central management of accounts, permissions and devices.
• Built-in security (MFA, Conditional Access, DLP) included in the Premium licence.

Most common mistakes

• Assuming Microsoft backs up your data (it does not — that is on you).
• SharePoint file chaos without agreed structure and permission rules.
• Buying extra tools whose features are already in Business Premium.