Deploying Microsoft 365 in a small or medium-sized business (SMB) isn't as simple as buying licenses and installing applications on computers. A well-executed deployment opens the door to better collaboration, enhanced security, and reduced costs in the long run. A botched deployment, on the other hand, generates confusion, security issues, and hidden costs. Here's how to do it right from the start.
Microsoft 365 is much more than just an office suite. It's a complete ecosystem that includes email (Exchange Online), collaboration (Teams and SharePoint), storage (OneDrive), security (Defender, Entra ID), and device management (Intune). To unlock its full potential, each component must be configured correctly to meet your specific needs: and that's where many small and medium-sized businesses miss out on significant benefits.
Quick answer: To deploy Microsoft 365 in a Quebec SME, migrate emails and files without interruption, enable multi-factor authentication from the start, configure SharePoint and OneDrive, and then train your teams.
1. Choosing the right Microsoft 365 license for your SME
The first decision to make is choosing your licenses. Microsoft offers several tiers suitable for small and medium-sized businesses, and choosing the wrong tier could deprive you of important features or make you pay for unnecessary options.
| License | Main content | Ideal for |
|---|---|---|
| Microsoft 365 Business Basic | Emails, Teams, SharePoint, OneDrive (web and mobile) | SMEs with simple collaborative needs |
| Microsoft 365 Business Standard | Basic + Office applications on desktop + Teams webinars | SMEs that want Office installed locally |
| Microsoft 365 Business Premium | Standard + advanced security (Defender, Intune, Entra ID P1) | SMEs that want enterprise-level security |
For the vast majority of Quebec SMEs, Microsoft 365 Business Premium offers the best value-for-money ratio. The additional security layer included (device management, advanced email protection, conditional authentication) justifies the extra cost, especially given the constantly increasing number of cyberattacks targeting SMEs.
2. The steps to a successful Microsoft 365 deployment
A successful M365 deployment follows a logical sequence. Here are the main steps that any serious project should follow:
- Audit of the existing environment: Inventory of current licenses, existing emails, shared files, and applications in use. Identification of data to be migrated and configurations to be replicated.
- Creating and configuring the Microsoft 365 tenant: Adding your company domain, configuring basic settings, creating user accounts and groups.
- Security setup first: Enabling MFA, configuring basic security policies, conditional access and Microsoft Defender: before migrating anything.
- Email migration: Migration of mailboxes from your current provider (Google Workspace, IMAP hosting, local Exchange) to Exchange Online, with preservation of email history.
- File and data migration: Organization and transfer of existing files to SharePoint and OneDrive according to a structure adapted to your organization.
- User training: Practical sessions tailored to your teams for Teams, Outlook, SharePoint and OneDrive: the tools they will use on a daily basis.
- Post-deployment support: Support in the weeks following the launch to answer questions and resolve adoption frictions.
3. Migration of existing emails and data
Migrating existing emails is often the most delicate part of the deployment. The goal is for your employees to find all their old emails, contacts, and calendars in their new Exchange Online mailbox, without any data loss.
Migration from Google Workspace
Microsoft offers direct migration tools from Google Workspace to Microsoft 365. Google emails, contacts, and calendars can be imported into Exchange Online, and Google Calendar into Outlook. The migration can happen in the background while employees continue working.
Migration from IMAP or POP hosting
Most email hosting providers (local hosting, GoDaddy, OVH, etc.) support the IMAP protocol. Microsoft 365 includes an IMAP migration tool that allows you to transfer all your emails to Exchange Online. Migrating contacts and calendars may require additional steps depending on the provider.
Migrating files to SharePoint and OneDrive
Microsoft's SharePoint Migration Tool (SPMT) allows you to migrate files from local Windows file servers, on-premises SharePoint sites, or network shares to SharePoint Online and OneDrive. Folder structures are preserved, and permissions can be reconfigured as needed.
4. Configure Microsoft 365 security from the start
One of the most common mistakes during an M365 deployment is postponing security configuration until after everyone is up and running. This is a risky approach: unsecured Microsoft 365 accounts are prime targets for cybercriminals.
Security elements to configure as a priority:
- Multi-factor authentication (MFA): Mandatory for all accounts, especially administrators. Without MFA, a stolen password is enough to compromise an account.
- Default security settings or conditional access: Microsoft offers easy-to-activate "Security Defaults," or more granular conditional access policies for Premium licenses.
- Microsoft Defender for Office 365: Advanced protection against phishing, malicious links and dangerous attachments in Outlook.
- Data Loss Prevention (DLP): Rules that prevent the accidental sharing of sensitive information (card numbers, confidential information) outside the company.
- Device management with Intune: Ensures that only devices compliant with your security policies can access Microsoft 365 data.
5. Frequently Asked Questions about Microsoft 365 Deployment
How long does a Microsoft 365 deployment take for an SMB?
For an SME with 10 to 30 users and no existing complex system, a complete deployment including email migration and training typically takes 2 to 4 weeks. More complex projects (migrating large files, integrating business applications, advanced security configuration) can take 4 to 8 weeks. The key is not to rush the security steps.
Can we continue to use our emails during the migration?
Yes. The email migration happens in the background, and users continue to send and receive emails during the process. There's a brief interruption during the final DNS switchover (a few minutes), after which all email traffic goes through Exchange Online. With proper planning, this switchover is virtually imperceptible.
Should we change our work habits with Microsoft 365?
There's a learning curve, especially for Teams and SharePoint if your employees have never used them before. But Outlook is still Outlook, and Word, Excel, and PowerPoint work essentially the same way. The biggest transition is in file sharing: instead of sending email attachments, teams learn to collaborate on documents in SharePoint. This change, once adopted, saves a lot of time.
Are Microsoft 365 licenses purchased monthly or annually?
Microsoft offers both options. Monthly subscriptions with no commitment are more flexible but slightly more expensive. Annual subscriptions offer a discounted rate in exchange for a 12-month commitment. For most small and medium-sized businesses (SMBs), an annual subscription is more economical, especially if the number of employees is relatively stable.
OKTO Solutions, a Microsoft certified partner for your M365 deployment
At OKTO Solutions, we have been planning and executing Microsoft 365 deployments for Quebec SMEs for several years. Our approach covers the entire project: initial audit, license selection, data migration, security configuration, and training for your teams.
If you're considering upgrading to Microsoft 365, or if you already have M365 licenses but aren't fully utilizing their potential, contact us for a free evaluation. We'll help you maximize your Microsoft 365 investment while ensuring your environment is secure from day one.
For more information, see the Microsoft 365 setup guide available on Microsoft Learn.
Questions about this article? Contact our OKTO Solutions team for a free consultation.