Moving to Microsoft 365: What Gold Coast Small Businesses Need to Know Before They Start

Why Microsoft 365 Migration Goes Wrong

Most Gold Coast small businesses eventually migrate to Microsoft 365 for email, file storage, and collaboration. Many do it poorly: email accounts go missing, calendar data is lost, staff cannot find files after the move, and security configuration is never done.

A properly planned Microsoft 365 migration causes minimal disruption and leaves you in a better position than before. An unplanned one creates weeks of cleanup.

What a Microsoft 365 Migration Actually Involves

Moving to Microsoft 365 is not just "getting email in the cloud." A full migration typically covers:

• Email — migrating mailboxes from your old system (on-premises Exchange, another hosted provider, or Gmail)
• Calendars and contacts — often forgotten until staff start complaining
• File storage — moving from a local file server or NAS to SharePoint and OneDrive
• Teams — setting up channels, permissions, and integrations
• Licensing — choosing the right licence tier for each user
• Security configuration — MFA, Conditional Access, sharing policies, and external access settings

Each of these requires specific planning and sequencing. Email is usually done first, files second, and security configuration runs in parallel.

Choosing the Right Licence Tier

Microsoft 365 comes in multiple tiers with meaningfully different inclusions. Getting the tier wrong is a common and expensive mistake.

Microsoft 365 Business Basic ($10–12/user/month ex GST): Includes cloud email, Teams, SharePoint, and OneDrive. Does not include desktop Office applications — staff access Word, Excel, and PowerPoint via browser only. Suitable only for businesses whose staff primarily work in a browser or have other Office licencing.

Microsoft 365 Business Standard ($20–22/user/month ex GST): Adds full desktop Office applications (Word, Excel, PowerPoint, Outlook) installed locally. The most common choice for businesses that want both cloud services and desktop apps.

Microsoft 365 Business Premium ($35–40/user/month ex GST): Adds Microsoft Intune (device management), Defender for Business (advanced endpoint security), Azure AD Premium P1 (Conditional Access), and Microsoft Purview (compliance). The right choice for businesses with compliance requirements or wanting enterprise-grade security included in the licence.

Netluma IT consistently recommends Business Premium for most businesses — the security and compliance tools included more than justify the price difference compared to building them separately.

Preparing for Email Migration

Email migration has technical complexity that catches businesses off-guard.

DNS record changes are required to redirect incoming email from your current system to Microsoft. DNS changes have a propagation period — typically 1-4 hours but sometimes up to 24 hours. During this window, some email may arrive at the old system, some at the new. Plan for this.

Mobile devices must be reconfigured after email migration. Every staff member's phone will need to be updated with the new Microsoft 365 account. This is easy but affects every user, so communicate it in advance.

Mail rules and signatures from the old system do not migrate automatically. Document existing rules (email filtering, auto-forward rules, out-of-office templates) before migration so they can be recreated.

Shared mailboxes — reception@, info@, accounts@ — require specific setup in Microsoft 365 as shared mailboxes with delegated access. These are frequently forgotten until after go-live.

File Server Migration to SharePoint

Moving from a local file server to SharePoint/OneDrive is often the most complex part of a Microsoft 365 migration.

Permissions mapping is the hardest problem. File server permissions are based on Active Directory security groups. SharePoint permissions work differently. A direct lift-and-shift of file server data to SharePoint does not carry permissions — they must be recreated manually in SharePoint.

Folder structure rationalisation. A file server migration is a good opportunity to clean up. Folders not accessed in 2-3 years can be archived rather than migrated. The migration is faster, the SharePoint environment is cleaner, and staff adoption is easier.

Desktop sync. Staff accustomed to mapped network drives (Z:, S:, etc.) need to understand how OneDrive Sync works differently. Files are stored in the cloud and synced locally — they are not on a mapped drive. This behavioural change requires communication and training.

Path length limits. SharePoint has shorter maximum path lengths than Windows file servers. Files with very long file paths (deeply nested folders with long names) may fail to sync. Identify these before migration.

Security Configuration: The Step Most Businesses Skip

Many businesses complete the Microsoft 365 migration and never properly configure the security layer. This is a critical gap — Microsoft 365 with default security settings is significantly less secure than a properly configured tenancy.

Multi-factor authentication. MFA should be enforced for all accounts, not optional. Microsoft reports that MFA blocks over 99% of account compromise attacks.

Conditional Access policies. Conditional Access allows you to require MFA only in certain circumstances (logging in from outside the office, on a new device) and to block access entirely from high-risk conditions (anonymous IP addresses, known compromised IP ranges).

External sharing settings. SharePoint's default external sharing settings are often too permissive. Review and restrict to your actual requirements.

Guest access. Teams and SharePoint both allow guest access by external users. Ensure guest access is properly controlled rather than left at defaults.

Microsoft Secure Score. Once configured, review your Microsoft Secure Score in the Microsoft 365 Defender portal. It identifies specific configuration gaps and provides recommendations with clear priority levels.

What Not to Do

Do not migrate everything at once. Email first, then files, then applications. A phased approach lets you resolve issues before they affect the whole business.

Do not cancel your old email system before migration is complete. Keep both systems running until all mailboxes are migrated and verified.

Do not skip training. Staff who do not understand how to find files in SharePoint will revert to emailing attachments or using personal storage. A 30-minute training session on OneDrive and SharePoint before go-live prevents weeks of confusion.

Do not forget mailbox size limits. Microsoft 365 Business licences include 50 GB mailboxes (expandable). Migrating from a system with smaller limits is fine. Migrating from a system with larger mailboxes (some on-premises Exchange configurations have 100+ GB mailboxes) requires planning.

Netluma IT migrates Gold Coast and Brisbane businesses to Microsoft 365 — including email, SharePoint, Teams, and security configuration. Call 1300 521 162 to discuss your migration.