Google Workspace to Office 365: what is migrated and what are the limitations?

This article explains what is migrated during a Google Workspace to Office 365 migration and the limitations.

The full solution page can be found here: Google Workspace to Microsoft 365 Migration

Table of Content:

1. Mail Migration
2. Google Group Migration
3. Google Drive Migration
4. Google Site Migration
5. Google Chat Migration
6. Google Vault Migration

1. Mailbox migration

Here is the Google Workspace to Microsoft 365 mail migration guide.

Migrated:

• Mails
  • Emails
    • Google Starred emails will be migrated as Flagged in Exchange because Exchange does not have an equivalent to Stars
  • Labels
  • Attachments
  • Deleted Items (Trash)
  • Spam (Junk Folder)
  • Permissions and Delegations
  • Categories
  • Color categorization
  • Signed Emails
  • Encrypted Mails (you need the decryption key)
• Contacts
  • Contacts
  • Contact groups
  • Contact Lists
    • Only members that have a valid Email Address will be added to the Contact List in the Exchange. Exchange does not support adding a contact that does not have an email address to a Contact List programmatically
• Calendars
  • Primary and secondary calendars
  •  Meetings
  • Recurring meetings
  • Permissions and Delegations
• Tasks
  • Open and Complete Tasks and Task Lists are migrated
  • Google Subtasks as migrated as regular tasks in Exchange because Exchange does not have the Subtask feature
  • Changes in tasks are not replicated (if a Task is migrated, any change on it will not be replicated during a delta pass)
• Rooms and resources
• Inbound Rules
  • Changes in Rules are not replicated (if a rule is migrated, any change on it will not be replicated during a delta pass)
• Distribution Lists

Not migrated:

• Blocked users (you need to reenable them)
• Out of Office Messages
• Suggested and cached contacts
• Signatures
• Declined events are not migrated from the source.
• Attachments larger than 35Mb (Microsoft 365 API limitation).
• Corrupted messages
• Attached documents on Calendar invites.
• Cloudiway does not alter the body of the calendar invite. If the invite contains URLs to meeting rooms, these URLs are not translated.

For calendar invites with attachments, Outlook renders the attachment links incorrectly and the attachments will show in Outlook as shown in the screenshot below. This behavior is native between Exchange and Google and can be reproduced outside of the Cloudiway product (by sending a calendar invite with attachments from Google to someone in Exchange).

Google meeting with attachments:

Exchange meeting:

 

2. Google Groups Migration

Cloudiway migrates Google Groups (HTML discussion forums at http://groups.google.com) to Microsoft 365 groups or to shared mailboxes.
Here is the Google Groups to Microsoft 365 migration guide.

Migrated:

• Groups are recreated at the target as Shared Mailboxes, Unified Groups, or Teams.
• Posts and replies are migrated as emails at the target
• Membership is migrated

3. Google Drive migration

Here is the Google Drive to OneDrive Migration guide

Migrated:

• Google Drives are migrated to OneDrive and/or to SharePoint Online libraries
• Folder structures
• Files (Except Forms, maps, Google Apps scripts)
• Files are automatically converted from Google format to Microsoft Office format, check out this article to see how files are converted.
• Permissions and shares
• Revisions
• Metadata (date of creation, date of modification, owner,etc.)
• Shared with me view

Not migrated:

• Blocked users (you need to reenable them)
• Corrupted Documents
• Google Forms
• Google My Maps
• Google Apps Scripts
• Google Audio files
• Empty folders
• Files that are not downloadable from Google (For example *.bin files)

To learn more about the file migration limitations, please check out this article.

4. Google Sites migration

Here is the Google Site to SharePoint Migration Guide

Migrated:

• Pages
• Menu
• Permissions ( Site Level Permissions)
• Layout
• Buttons/ Dividers
• Sections
• Files
• Folders
• Images
• Image Carousels
• Embed To Iframes
• Collapsible Text
• Table Of Content
• PlaceHolder to Cell
• Youtube video
• Calendar List
• Maps
• Viewers (Doc, Slide, Spreadsheet)

Not migrated:

See https://help.cloudiway.com/article/google-site-to-sharepoint-migration-limitations/ for additional information.

• Menus with more than two levels (SharePoint limitation)
• Site logo

Google Sites and Drive work closely together, you can embed Google Drive documents or folders in a Google Sites, this article explains why you need both File and Sites Licenses:

Delta Pass During Google Sites Migration

 

5. Google Chat Migration

Migrated:

• Public Channel
• Private Channel
• Members of Channel
• Messages
• Replies
• Google Chat Messages
• Google Spaces
• Medata (Created by, TimeStamp)
• Mention of Users
• Mention of Group
• Files
• Links in messages / Links to a document or image, as long as the document or image was also migrated
• Web page links / Links that open in a new tab, as long as the link has been opened

6. Google Vault Migration

Migrated:

• Mails

Not Migrated:

• Labels (Folders). The Vault export returns a flat list of messages without mentioning which labels were applied. Therefore vault export is migrated in the Inbox folder.