Cutover G Suite to Microsoft 365 Migration — Full Mailbox Data
This service migrates full mailbox data from G Suite (Google Apps) to Microsoft 365 / Exchange Online, including email data, email folders, contacts, calendars, and tasks. It is intended for customers that have a Microsoft 365 tenant with Exchange Online licenses, access to their email domain DNS zone, and admin access to G Suite. SKU: ITPWW470MIGOT. Price: $300 + $25 per mailbox. Duration: one week. Manager: Roman Sotnik.
What this engagement is
IT Partner plans and performs a cutover migration from G Suite to Microsoft 365 using a special migration utility designed to move mail data, calendars, and other information in the shortest time while avoiding possible errors during manual data transfer. The objective is to provide a plan and design a way to migrate to Microsoft 365, including email, contacts, calendars, and tasks. The project will be considered successful when email, contacts, calendars, and tasks are migrated to the Microsoft 365 tenant; Google Drive data migration is not included in this SKU and requires a separate SKU. Published date: 2019-09-25. Products: Office 365, microsoft 365. Type: Migration.
Success criteria
What you receive
How the work unfolds
Confirm project scope, mailbox count, target cutover window, communication approach, customer points of contact, required administrator access, licensing readiness, DNS responsibilities, and any high-risk users or mailboxes that need special handling.
Review the G Suite / Google Workspace environment, administrator access, domain status, enabled services for mail, contacts and calendars, mailbox inventory, large mailbox risks, source connectivity, and any conditions that may affect migration throughput or completeness.
Prepare recipient objects in Microsoft 365 by creating cloud users or configuring directory synchronization where applicable, validating primary SMTP addresses and aliases, and confirming that required Exchange Online licenses are available and assigned.
Configure the migration utility, establish source and destination connections, map source mailboxes to Microsoft 365 users, begin the initial synchronization of mailbox data, contacts, calendars, and tasks, and monitor for authentication, throttling, or item-level errors.
Review migration dashboard/status reports, validate representative user mailboxes in Exchange Online, confirm folder structures and migrated item types, address migration errors where possible, and identify any users requiring remediation before cutover.
Coordinate the mail-flow cutover with the customer, including customer-performed updates to the domain MX record and any required mail-related DNS records, then verify that new inbound mail is delivered to Exchange Online and outbound mail is functioning as expected.
Run the final synchronization after DNS cutover to capture delta changes from the source system, reprocess failed or skipped items where supported by the migration tool, and confirm that newly delivered mail is landing in Microsoft 365.
Perform post-cutover validation with the customer, confirm user access from supported clients and mobile devices, verify mail send/receive, Exchange Online Protection and necessary transport rules, document any remaining exceptions, and provide the closeout report.
Prerequisites
Who does what
IT Partner
- Gather information and verify the original G Suite
- Configure the destination Microsoft 365 tenant
- Create and configure users
- License assignment
- Create and configure a migration plan
- Provide informational messages for users
- Start and control the data migration process
Your team
- Coordinate Client resources and staff schedules
- Provide a dedicated point of contact responsible for working with IT Partner and coordinate any outside vendor resources and schedules
- Review and approve engagement deliverables in a timely manner
- Configure all network equipment, such as load balancers, routers, firewalls, and switches
- Perform changes to internal and external DNS, as required
- Assist with identification of high-risk users (top executives and VIP users, users with 50 GB mailboxes or larger and/or 30 GB deleted folders or larger)
- Ensure contact and calendar services are turned on for all users
- End user support
What's not included
Limitations & technical notes
Frequently asked questions
What does the Cutover G Suite to Microsoft 365 Migration - Full Mailbox Data service include?
This service migrates full mailbox data from G Suite / Google Apps to Microsoft 365 / Exchange Online, including email, email folders, contacts, calendars, and tasks. IT Partner also plans the migration, configures the destination Microsoft 365 tenant, creates and configures users, assigns licenses, controls the data migration process, and provides a project closeout report.
Does this service migrate Google Drive files to Microsoft 365?
No. Google Drive data is not included in this SKU. This service covers email, email folders, contacts, calendars, and tasks only. Google Drive migration is a separate SKU.
What is the price for this G Suite to Microsoft 365 cutover migration service?
The listed price is $300 plus $25 per mailbox. The service SKU is ITPWW470MIGOT, and the stated service manager is Roman Sotnik.
How long does the G Suite to Microsoft 365 cutover migration take?
The stated duration for this service is one week. The plan may vary depending on customer needs, mailbox size, readiness, DNS access, and any issues found during verification, so the exact schedule should be confirmed during kickoff.
What prerequisites must be in place before starting the migration?
The customer must have a Microsoft 365 tenant with Exchange Online licenses, access to the email domain DNS zone, and admin access to G Suite.
What happens during the migration engagement?
The engagement includes a kickoff meeting, pre-migration source system health check, user creation or AD Connect configuration, migration start, migration verification, MX record change to the new Microsoft 365 tenant, final migration, and issue fixing if needed. IT Partner uses a migration utility and a controlled migration process to move mailbox data while reducing errors from manual transfer.
Will users be created in Microsoft 365 as part of the service?
Yes, creating and configuring users is included in IT Partner’s responsibilities for this migration. License assignment is also included, provided the customer has the required Microsoft 365 tenant and Exchange Online licenses available.
Is AD Connect configuration included?
The implementation plan includes either user creation or AD Connect tool configuration as a milestone. The exact approach depends on the customer environment and should be confirmed during planning.
Who is responsible for DNS changes during the cutover?
The customer is responsible for performing internal and external DNS changes as required, including changes to the email domain DNS zone. IT Partner’s implementation plan includes coordinating the MX record cutover to the new Microsoft 365 tenant, but the customer must have DNS access and support the required changes.
How is mail flow switched from G Suite to Microsoft 365?
Mail flow is switched by changing the MX record to point to the new Microsoft 365 tenant. After cutover and verification, one of the success criteria is that mail can be sent and received using Exchange Online.
Will there be downtime during the cutover?
The service content does not state a guaranteed downtime window. Because the migration includes an MX record change and final data migration, customers should plan for a coordinated cutover period and confirm expected business impact with IT Partner during the migration planning stage.
What mailbox data is included in a full mailbox migration?
The full mailbox migration scope includes email data, email folders, contacts, calendars, and tasks from G Suite to Microsoft 365 / Exchange Online. If only email and email folders are required, without contacts, tasks, and calendar, IT Partner states that an IMAP migration from G Suite to Microsoft 365 should be ordered instead.
What is not included in this service?
Customer team training, Google Drive file/data migration, corporate or user document migration to SharePoint Online, desktop software settings, and documentation beyond the project closeout report are not included. Google Drive migration is a separate SKU. Some of these items may be available as additional services or for an additional fee.
Does this service configure Exchange Online Protection?
Exchange Online Protection configuration is part of the stated success criteria. The project is considered successful in this area when Exchange Online Protection is configured and working.
Are transport rules included in the migration scope?
The success criteria state that all necessary Transport rules are created and working. The exact rules required depend on the customer’s mail-flow requirements and should be addressed during the migration plan and tenant configuration.
What responsibilities does IT Partner handle during the migration?
IT Partner gathers information, verifies the original G Suite environment, configures the destination Microsoft 365 tenant, creates and configures users, assigns licenses, creates the migration plan, provides informational messages for users, and starts and controls the data migration process. IT Partner also provides a closeout report with final project status, acceptance criteria matching, outstanding issues if any, and final budget.
What responsibilities remain with the customer during the migration?
The customer must coordinate internal resources and staff schedules, provide a dedicated point of contact, review and approve deliverables, configure network equipment, perform DNS changes, identify high-risk users, ensure contact and calendar services are enabled for users, and provide end user support. These responsibilities are important because IT Partner depends on timely access, approvals, and customer-side changes to complete the cutover.
How should high-risk users be handled for this migration?
The customer is responsible for helping identify high-risk users, including top executives and VIP users, users with mailboxes of 50 GB or larger, and users with deleted folders of 30 GB or larger. Identifying these users early helps IT Partner plan the migration and verification process appropriately.
What does the customer receive at the end of the project?
At completion, the customer receives a project closeout report showing final project status, acceptance criteria matching, outstanding issues if any, and the final budget. The intended outcome is that users can access Exchange Online from desktop PCs, mobile phones, and tablets, and that migrated email, contacts, calendars, and tasks are accessible in the Microsoft 365 tenant.
Can this service be used for a partial migration from G Suite to Microsoft 365?
No, this service is positioned for full mailbox data migration, including email, folders, contacts, calendars, and tasks. If the customer needs only email and email folders without contacts, tasks, and calendar, the service notes that an IMAP migration from G Suite to Microsoft 365 should be ordered instead.