Microsoft 365 Migration Guide for Small Businesses in Central Texas

If your Central Texas business is still relying on aging Office licenses, a local Exchange server, or Google Workspace, you have probably heard the pitch for Microsoft 365. Maybe you have resisted making the switch because the whole process seems complicated. Fair enough. A Microsoft 365 migration touches every employee, every device, and years of email history. Done carelessly, it disrupts your business for days.

Contact Computek today for a free Microsoft 365 migration assessment — our Central Texas IT team handles every step so your business stays running during the transition.

Done right, a Microsoft 365 migration simplifies how your team communicates, collaborates, and stays secure. This guide walks you through exactly what the migration involves, the pitfalls small businesses routinely hit, and how to plan the project so the transition is smooth rather than painful. If you are a business owner or office manager in Georgetown, Round Rock, or anywhere in Central Texas, this is what you need to know.

What Does a Microsoft 365 Migration Involve for a Small Business?

A Microsoft 365 migration moves your organization from its current email, file storage, and productivity tools to Microsoft’s cloud platform. For a Central Texas SMB with 10 to 50 employees, the project typically spans four to eight weeks and includes auditing your existing environment, setting up your Microsoft 365 tenant, migrating email and file data, reconfiguring third-party integrations, and training your staff. Every migration is unique, but those core phases apply to virtually every small business deployment.

Why Microsoft 365 Makes Sense for Small Businesses

Microsoft 365 (formerly Office 365) is more than Word, Excel, and Outlook. The platform bundles a full productivity ecosystem that replaces several standalone tools most businesses already pay for separately. For a 10-to-50 person Central Texas business, consolidating communication, file storage, and security into one subscription typically reduces per-seat software costs and simplifies IT management significantly.

Teams: Your Communication Hub

Microsoft Teams replaces phone conferences, chat apps, and video calls under one roof. For a 20-to-50 person company in Central Texas, Teams cuts down on the “reply all” email chains and gives your team a persistent chat workspace that does not disappear after a meeting ends. Teams also integrates directly with SharePoint and OneDrive, so file sharing happens inside the conversation rather than through separate attachments.

SharePoint: Shared Storage That Actually Works

SharePoint provides a centralized document repository your whole team can access from any device. Instead of emailing version 7 of a proposal back and forth, everyone works from a single source of truth. For Central Texas businesses in construction, commercial real estate, or accounting, where multiple people touch the same documents, this is a meaningful upgrade over shared network drives.

OneDrive: Personal Cloud Storage With Business Controls

OneDrive gives each employee personal cloud storage that your IT provider can control and recover. When someone leaves or a device is lost, the data does not walk out the door. Files sync automatically, so remote workers or employees visiting a job site can access current documents from any device without a VPN.

Outlook and Exchange Online: Professional Email Without the Server

Exchange Online replaces an on-premise email server with a hosted Microsoft-managed solution. No more patching, no more storage limits hitting users during busy season, and no more weekend calls because the server went down. For businesses migrating away from aging Exchange servers, this is often the single biggest operational relief.

Security Built In

Microsoft 365 Business Premium includes Defender for Business, multi-factor authentication, conditional access, and mobile device management. For small businesses without a dedicated security team, these controls provide enterprise-grade protection at a per-seat monthly cost. When you consider that cybersecurity threats are the top operational risk facing Central Texas SMBs right now, bundling security into your productivity suite is a practical advantage.

Which Microsoft 365 License Does Your Small Business Need?

Choosing the right licensing tier before you start a Microsoft 365 migration prevents costly upgrades later. Most Central Texas small businesses land on Business Standard or Business Premium. The right choice depends on your headcount, security requirements, and whether you need device management capabilities. Here is a straightforward comparison of the three most common tiers for SMBs.

Computek helps you evaluate the right tier based on your headcount, security requirements, and budget before committing to a licensing agreement.

Common Microsoft 365 Migration Pitfalls

Knowing what can go wrong is half the battle. These are the most frequent problems small businesses run into when migrating to Microsoft 365 without a managed IT partner. Understanding them upfront lets you plan around them rather than recover from them after the fact.

1. Not Auditing What You Are Moving

Many businesses start a migration without inventorying their current environment. How many mailboxes exist? How large are they? Are there shared mailboxes, distribution groups, or resource calendars? Are there shared drives that have never been cleaned up? Running into surprises mid-migration extends timelines and causes outages. A thorough pre-migration audit typically takes one to two days but saves weeks of cleanup later.

2. Underestimating Email Migration Complexity

Email migration is the riskiest phase of any Microsoft 365 project. Issues include:

• Large mailboxes: Migrating a 20GB mailbox over a typical business internet connection takes time. Plan for it, or stage migrations during off-hours.
• Duplicate or corrupt items: Older Exchange servers and PST archives often contain corrupted items that break migration tools. These need to be identified and handled before the cutover.
• MX record timing: The moment you change your MX records, new mail routes to Microsoft 365. If your old server still has unsynced mail in flight, it lands in the wrong place.
• Shared mailboxes: Generic inboxes like info@ or billing@ are easy to overlook. Missing one means a business-critical inbox stops receiving mail.

3. No User Training Plan

Outlook on Microsoft 365 looks different from the legacy version most employees have used for years. Teams is entirely new to most users. Without a brief training rollout, you will spend the first month fielding “how do I find my calendar?” questions. Budget at least a few hours for a guided walkthrough before go-live, and set up a reference sheet for the most common tasks.

4. Skipping the Pilot Group

Rolling M365 out to every employee on day one is a risk you do not need to take. Migrate a small pilot group first, verify everything works as expected for two weeks, then cut over the rest of the company. This catches configuration problems when only a few people are affected instead of everyone.

5. Ignoring Third-Party Application Integrations

Many small businesses use industry-specific software, accounting platforms, or CRM tools that integrate with Outlook or Exchange. QuickBooks, Clio, Procore, and dozens of other platforms have email and calendar integrations that need to be reconfigured after migration. Missing this step breaks workflows people depend on daily.

6. No Rollback Plan

A migration without a rollback plan is a leap of faith. Before any cutover, document exactly how to revert if something goes catastrophically wrong. This does not mean you will need it. It means you will sleep better the night of the migration.

Not sure whether your environment is ready for a Microsoft 365 migration? Schedule a free assessment with Computek and we will identify every risk before you touch a single mailbox.

Planning Your Migration Timeline

A well-managed Microsoft 365 migration for a 20-to-50 person Central Texas business typically follows this structure. Rushing any phase, particularly the pilot group or post-cutover monitoring, is where migrations go wrong. Treat each phase as a gate: do not advance until the previous phase is verified and signed off.

Phase 1: Discovery and Planning (Week 1–2)

• Audit current environment: mailboxes, sizes, shared drives, third-party integrations
• Confirm Microsoft 365 licensing tier appropriate for your business
• Document all DNS records, MX records, and email routing rules
• Identify pilot group (5–10 users across different departments)
• Notify employees of the upcoming change and timeline

Phase 2: Tenant Setup and Pilot (Week 3–4)

• Create and configure Microsoft 365 tenant
• Set up security policies: MFA, conditional access, password requirements
• Migrate pilot group mailboxes
• Verify Outlook profiles, calendar sharing, and Teams access for pilot users
• Test integrations with line-of-business applications
• Identify and resolve any issues before full rollout

Phase 3: Full Migration (Week 5–6)

• Migrate remaining mailboxes in batches during off-hours
• Migrate SharePoint and OneDrive data from existing file shares
• Update MX records and DNS at the planned cutover window
• Monitor mail flow for 24–48 hours after cutover
• Decommission old mail server after a verification period

Phase 4: Training and Stabilization (Week 7–8)

• Conduct user training sessions on Outlook, Teams, and OneDrive
• Distribute quick-reference guides
• Address user questions and configuration adjustments
• Verify backups and data protection policies are active
• Document the completed environment for ongoing support

Microsoft 365 Migration Checklist

Use this checklist to track your migration progress. A local IT partner like Computek handles all of these steps as part of a managed migration engagement.

Pre-Migration

• ☐ Inventory all mailboxes, shared mailboxes, distribution groups, and resource calendars
• ☐ Document current DNS and MX records
• ☐ Identify all third-party integrations that connect to email or calendar
• ☐ Select appropriate Microsoft 365 licensing tier (Business Basic, Standard, or Premium)
• ☐ Establish pilot group
• ☐ Back up existing email server and file shares
• ☐ Communicate migration schedule to all staff

Tenant Configuration

• ☐ Create Microsoft 365 tenant with your domain
• ☐ Configure multi-factor authentication
• ☐ Set up conditional access and security defaults
• ☐ Configure spam filtering and email security policies
• ☐ Create user accounts and assign licenses
• ☐ Set up shared mailboxes, aliases, and distribution groups

Data Migration

• ☐ Migrate pilot group mailboxes and verify
• ☐ Migrate remaining mailboxes in off-hours batches
• ☐ Migrate SharePoint content from file shares
• ☐ Configure OneDrive sync on user workstations
• ☐ Update MX records and DNS at cutover window
• ☐ Verify mail flow for 24–48 hours post-cutover

Post-Migration

• ☐ Complete user training on Teams, Outlook, and OneDrive
• ☐ Reconfigure third-party integrations
• ☐ Verify backup and data retention policies
• ☐ Decommission old mail server after verification period
• ☐ Document completed environment configuration

How Computek Handles Microsoft 365 Migrations for Central Texas Businesses

Computek has been serving small businesses in Georgetown, Round Rock, and North Austin since 2001. Our team has managed Microsoft 365 migrations for businesses in construction, commercial real estate, legal, accounting, and healthcare. We know the applications your industry relies on, and we plan migrations around them to prevent the integration failures that catch self-managed projects off guard.

When you engage Computek for an M365 migration, you get a dedicated technician who handles every step from the initial audit through post-migration support. We do not hand you a manual and wish you luck. We run the migration project, coordinate the cutover window around your business schedule, and stay available for questions from your staff during the transition period.

Our managed IT services model means we also stick around after the migration. Your Microsoft 365 environment needs ongoing administration, security monitoring, and license management. Computek handles that as part of your ongoing support agreement, so the migration is not a one-time project that leaves you on your own.

We also pair M365 implementations with cloud computing services and data backup and recovery to make sure your business data is protected from day one. Microsoft 365 is not a backup solution; it needs a complementary backup strategy that we set up as part of the project.

Frequently Asked Questions

How long does a Microsoft 365 migration take for a small business?

For most Central Texas SMBs with 10 to 50 employees, a well-managed migration takes four to eight weeks from initial planning to fully operational. Smaller businesses with simple environments can move faster. The timeline depends primarily on the size of existing mailboxes, the complexity of third-party integrations, and how much existing file share data needs to move to SharePoint.

Can we migrate from Google Workspace to Microsoft 365?

Yes. The migration path from Google Workspace to Microsoft 365 is well-established. Contacts, calendar events, and email history all migrate. Google Drive content moves to OneDrive or SharePoint, though shared drives require planning to map correctly. The main adjustment for your staff is switching from Gmail-style email to Outlook, which a brief training session handles effectively.

What Microsoft 365 license does a small business need?

Most Central Texas SMBs land on Microsoft 365 Business Standard or Business Premium. Business Standard includes the full Office apps, Teams, SharePoint, and Exchange Online. Business Premium adds advanced security features including Microsoft Defender for Business and Intune for device management. If cybersecurity is a concern, Business Premium is worth the additional per-seat cost. Computek helps you evaluate the right tier based on your headcount, security requirements, and budget.

What happens to our existing email history after migration?

Your email history migrates with your mailboxes. Users keep access to their old messages, folders, and contacts in Outlook after the cutover. The migration tool transfers email history from your current environment, whether that is Google Workspace, a local Exchange server, or archived PST files. Very old or large archives may take longer to transfer, but nothing is lost when the migration is properly planned.

Do we need to replace our computers to run Microsoft 365?

Not necessarily. Microsoft 365 runs on Windows 10 and 11 on most hardware that is less than five years old. However, if your business is running aging hardware, a migration project is a natural opportunity to evaluate workstation health. Computek typically conducts a hardware assessment as part of the planning phase to flag any devices that may cause problems after migration.

What does a free M365 assessment from Computek involve?

Our free assessment starts with a conversation about your current environment: what email system you use, how many users, what software you rely on, and what your pain points are. From there, we review your existing infrastructure, identify migration risks, and give you a clear picture of what the project will involve, how long it will take, and what it will cost. There is no obligation, and the assessment gives you enough information to make a well-informed decision regardless of whether you proceed with us.

Ready to Start Your Microsoft 365 Migration?

Switching to Microsoft 365 is one of the most impactful technology decisions a Central Texas small business can make, but it needs to be done right. The businesses that struggle are the ones that try to do it themselves or hire a generalist who has never managed a migration at this scale. The businesses that come out ahead are the ones that plan carefully, test before committing, and have an experienced IT team managing the process.

Computek has been the go-to IT partner for Georgetown, Round Rock, and North Austin businesses for over two decades. Our team handles Microsoft 365 migrations from start to finish, so you can focus on running your business while we handle the technology transition.

Contact Computek today for a free Microsoft 365 assessment. We will evaluate your current environment, walk you through what the migration involves, and give you a clear plan for moving forward. Reach out to our team to schedule your assessment at no cost or obligation.