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# Moving from Microsoft 365 to Google Workspace Checklist for IT Leaders
- URL: https://rolloutready.com/moving-microsoft-365-google-workspace-checklist/
- Published: 2026-10-27T01:44:00.000Z
- Updated: 2026-10-27T01:44:00.000Z
- Description: A detailed moving from Microsoft 365 to Google Workspace checklist guides IT leaders through planning, migration, and user adoption for a successful transition.
- Author: Daniel Hayes
- Tags: Cloud Migration, IT Leadership, Google Workspace, Microsoft 365, Data Migration

**Short answer:** Moving from Microsoft 365 to Google Workspace involves careful planning, thorough assessment of your existing environment, and meticulous execution of data migration. A detailed moving from Microsoft 365 to Google Workspace checklist helps you manage technical steps like mailbox migration, permissions mapping, and domain verification alongside strategic tasks such as user training and adoption support.

This article covers the essential actions IT leaders need to take for a successful transition. You'll find guidance on assessing your current Microsoft 365 setup, planning your Google Workspace configuration, executing migration with data integrity and security in mind, and preparing your users for change. It also highlights common pitfalls to avoid, ensuring your organization experiences minimal disruption and maximum benefit from the migration.

## Understand Why Moving to Google Workspace Matters

[Switching from Microsoft 365 to Google Workspace](https://rolloutready.com/switching-microsoft-365-google-drive/) reshapes how your teams collaborate daily. Unlike Microsoft 365’s desktop-centric model that relies heavily on installed Office apps, Google Workspace emphasizes cloud-native, real-time collaboration through apps like Google Docs, Sheets, and Slides. This difference encourages simultaneous editing, instant commenting, and seamless sharing without version conflicts, which many organizations find improves workflow efficiency.

From a cost perspective, Google Workspace can reduce expenses by streamlining licensing and lowering IT maintenance overhead. For example, organizations migrating to Google Workspace often notice savings related to fewer client software updates and simplified user management. Additionally, Google Workspace’s integration with cloud-first and remote work strategies supports flexible access from any device or location, aligning with modern workforce requirements.

Consider a mid-sized company that struggled with version control and email storage limits in Microsoft 365\. After migrating, their teams used Google Drive’s centralized file system and Gmail’s robust search and storage, reducing delays and minimizing helpdesk tickets. This illustrates how the platform shift can directly impact productivity and user satisfaction.

## Assess Your Current Microsoft 365 Environment

Begin by conducting a thorough inventory of your Microsoft 365 setup. Use the Microsoft 365 admin center under Users > Active users to export a list of all user accounts and mailboxes, noting mailbox sizes and types. For file storage, check OneDrive for Business usage reports and SharePoint site collections via the SharePoint admin center, paying attention to storage quotas and site hierarchies. Don’t overlook Teams data stored in SharePoint and Exchange, including chat history and channel files.

Identify third-party integrations and legacy applications connected to Microsoft 365 by reviewing Azure Active Directory Enterprise Applications and the Microsoft 365 admin center’s integrated apps section. These dependencies often require special handling during migration.

Evaluate data volume and types precisely—mail, files, calendars, and contacts—to estimate migration time and complexity. For example, an audit report might reveal 500 active mailboxes averaging 10 GB each, 2 TB of SharePoint data spread across 50 sites, and several critical third-party apps like a CRM integrated with Exchange.

This comprehensive snapshot helps you prioritize what to migrate, anticipate challenges, and allocate resources effectively.

- Export user and mailbox lists from Microsoft 365 admin center
- Review OneDrive and SharePoint storage reports
- Check Teams data storage locations and volumes
- Catalog third-party apps and legacy integrations via Azure AD
- Assess total data volume by type to plan migration phases

## Plan Your Google Workspace Setup and Migration Approach

Start by structuring Google Workspace to reflect your organization’s hierarchy via **organizational units (OUs)**. Navigate to Admin Console > Directory > Organizational units to create OUs that align with departments or teams, enabling tailored policies and settings. Set up user groups under Directory > Groups to manage permissions efficiently, such as access to shared drives or Google Sites.

![Plan Your Google Workspace Setup and Migration Approach – moving from Microsoft 365 to Google Workspace checklist](https://rolloutready.com/content/images/2026/10/moving-microsoft-365-google-workspace-checklist-2.webp)

Choosing the right migration tool depends on your environment size and complexity. Google Workspace Migration for Microsoft Exchange (GWMME) supports mail, calendar, and contacts but may struggle with complex permissions or large archives. Third-party tools like BitTitan or CloudMigrator offer advanced options like staged migrations and detailed logging but can add cost and setup overhead.

Consider a *phased migration* approach to reduce risk: migrate smaller user groups first, validate data integrity, then proceed with larger batches. For example, begin with a pilot group of 20 users over two weeks, then roll out to departments in 4-week intervals. This allows time to address technical issues and user training needs before full cutover.

| Migration Tool                                    | Features                                                                  | Limitations                                            |
| ------------------------------------------------- | ------------------------------------------------------------------------- | ------------------------------------------------------ |
| Google Workspace Migration for Microsoft Exchange | Email, calendar, contacts; free; direct integration                       | Limited support for OneDrive/SharePoint; basic logging |
| BitTitan MigrationWiz                             | Supports email, files, permissions; detailed reports; flexible scheduling | Subscription cost; requires configuration              |
| CloudMigrator                                     | Comprehensive data types; incremental migration; user-friendly UI         | Cost; less community support                           |

- Create organizational units matching your company structure
- Set user groups for access and permissions management
- Evaluate migration tools based on data types and complexity
- Plan a phased migration starting with a pilot group
- Schedule subsequent waves based on initial feedback and issues

## Execute Data Migration with Data Integrity and Security in Mind

Start by migrating core data sets: emails, calendars, contacts, and files. Use Google Workspace Migration for Microsoft Exchange (GWMME) or third-party tools like BitTitan MigrationWiz to move mailbox content. For calendars and contacts, ensure the migration tool supports recurring events and contact groups to avoid data loss. When handling files, migrate from Microsoft OneDrive and SharePoint to Google Drive, paying special attention to shared drives and permissions mapping, which often cause access issues post-migration.

Permissions mapping requires replicating Microsoft 365 group and sharing settings accurately in Google Workspace. For example, a shared OneDrive folder accessible to a project team must have identical visibility and editing rights in Google Drive. Failure to map permissions precisely can lead to data exposure or workflow interruptions.

Validate migrated data by running checksum comparisons and spot-checking critical mailboxes and shared drives. A common oversight is assuming all calendar entries transferred correctly; check for missing recurring events. Also, verify that no user data remained in Microsoft 365 after migration to prevent data gaps.

- Use GWMME or a reliable third-party tool for mailbox migration.
- Migrate OneDrive and SharePoint files to Google Drive, replicating folder structure.
- Map Microsoft 365 group permissions to Google Workspace sharing settings carefully.
- Validate migrated data with checksums and user spot-checks.
- Confirm no data remains untransferred in Microsoft 365.

## Prepare and Support Your Users for a Smooth Transition

Effective communication and targeted training are essential to help your users embrace Google Workspace quickly. Start by sending a clear user communication plan outlining key dates, new tool introductions, and available resources. For example, schedule an email campaign beginning two weeks before migration, with weekly reminders and bite-sized video tutorials on Gmail, Google Drive, and Google Meet basics.

Establish dedicated support channels such as a Google Workspace migration help desk, a shared FAQ document in Google Docs, and live Q&A sessions via Google Meet. These resources reduce frustration and provide timely assistance.

Post-migration, monitor adoption by tracking usage metrics in the Google Admin console and gather user feedback through surveys or direct interviews. One practical approach is to assign Google Workspace champions within departments to encourage adoption and report common issues.

- Create and distribute a user communication calendar starting two weeks before migration
- Develop role-based training materials focusing on daily workflows
- Set up a dedicated support help desk and live Q&A sessions
- Monitor adoption using Google Admin console reports and user surveys
- Engage departmental champions to sustain momentum and gather feedback

## Avoid Common Pitfalls When Moving from Microsoft 365 to Google Workspace

One frequent misstep is underestimating the complexity of Microsoft 365’s data permissions and sharing models. For example, a large enterprise once migrated without fully accounting for nested SharePoint permissions, resulting in users losing access to critical project files. The root cause was overlooking inherited permissions and unique sharing links during migration, creating major workflow disruptions.

![Avoid Common Pitfalls When Moving from Microsoft 365 to Google Workspace – moving from Microsoft 365 to Google Workspace chec](https://rolloutready.com/content/images/2026/10/moving-microsoft-365-google-workspace-checklist-3.webp)

Ignoring legacy integrations and app dependencies is another common trap. Many organizations rely on third-party tools tied to Microsoft 365 APIs that don’t have direct Google Workspace equivalents. Without identifying these dependencies early, you risk breaking workflows post-migration.

Neglecting thorough testing before full cutover can lead to unexpected downtime and data inconsistencies. Testing should include verifying user access, email routing, calendar syncing, and third-party integrations in a pilot group.

Top 5 mistakes with impact analysis:

1. **Overlooking complex permission structures:** Causes data access loss and user frustration.
2. **Skipping legacy app audit:** Leads to workflow interruptions.
3. **Inadequate pilot testing:** Results in downtime and data sync errors.
4. **Ignoring mailbox size limits:** Causes migration failures or delays.
5. **Poor communication of changes:** Leads to low adoption and support tickets.

**Checklist:**

- Review all SharePoint and OneDrive permission hierarchies explicitly.
- Inventory all third-party apps integrated with Microsoft 365.
- Conduct pilot migrations with representative user groups.
- Verify mailbox sizes against Google Workspace limits before migration.
- Prepare clear communication plans for post-migration changes.

## Read next

- [How to Switch from Google Workspace to Microsoft 365: A Complete Migration Guide](https://rolloutready.com/p/)
- [Moving from Dropbox to Google Workspace: Your Complete Checklist](https://macfixly.com/moving-dropbox-google-workspace-checklist/?ref=rolloutready.com)
- [Microsoft 365 Rollout Plan Tailored for Non-Technical Staff Success](https://rolloutready.com/microsoft-365-rollout-plan-non-technical-staff/)

## Frequently asked questions

### What are the biggest challenges when migrating from Microsoft 365 to Google Workspace?

The primary challenges include ensuring data integrity during migration, handling differences in file formats and permissions, and managing user adoption. Microsoft 365 and Google Workspace have distinct architectures, so aligning features like shared calendars, contacts, and email rules requires careful planning. Change management is critical to minimize disruption and resistance from users accustomed to Microsoft tools.

### Can all Microsoft 365 data and settings be migrated to Google Workspace?

Not all data and settings transfer seamlessly. Emails, contacts, calendars, and OneDrive files can typically be migrated, but custom settings, complex SharePoint configurations, and certain Microsoft Teams data may require manual adjustments or third-party tools. Some permissions and workflow automations may need to be re-created within Google Workspace.

### How do I choose the best migration tool for my organization?

Evaluate migration tools based on compatibility with your Microsoft 365 setup, support for data types (email, calendar, files), security features like encryption, and user experience during migration. Tools like Google Workspace Migration for Microsoft Exchange (GWMME) or third-party solutions such as BitTitan offer varying scopes and complexity. Consider scalability, cost, and available support when selecting.

### What training is needed for users after migration?

Focus training on Google Workspace core apps: Gmail, Drive, Calendar, and Meet, emphasizing differences from Microsoft counterparts. Include sessions on collaboration features like real-time editing in Docs and sharing permissions. Providing quick-reference guides and hands-on workshops helps users adjust and increases adoption speed.

## What this checklist does not cover

This checklist does not cover migrating custom-developed Microsoft 365 apps or complex on-premises hybrid environments; organizations with these needs should consult specialized migration experts. It also excludes detailed network infrastructure changes or compliance audits that might be necessary for regulated industries. If your migration involves advanced identity federation setups or heavy reliance on third-party integrations, consider engaging dedicated consultants to complement this guide.

## Quick checklist

- Document all Microsoft 365 licenses, services, and customizations currently in use.
- Audit mailbox sizes, shared drives, and collaboration tools to estimate data volume.
- Design Google Workspace organizational units and security policies aligned with your business structure.
- Test data migration on a small batch, verifying integrity and permissions.
- Communicate migration timelines and provide user training on Google Workspace tools.
- Enable multi-factor authentication and review access controls post-migration.
- Plan for a phased migration to minimize downtime and user disruption.

The single most useful next step is to run a pilot migration with a select group of users. This will reveal unexpected challenges in data transfer, permission mapping, or user adoption, allowing you to adjust your approach before scaling up. Prioritize clear communication and support during this phase to build confidence and smooth the path forward.