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    Migration to Gmail

    Refer to the table below to view the supported and unsupported object types for Exchange Online to Gmail Migration.

    *Note: The object types that are not listed in the table below are not supported.

    √ – Supported; × – Unsupported.

    Object TypeObject TypeObject TypeObject TypeSource App Profile Support StatusSource Service Account Authentication Support StatusComment
    Mailbox
    User mailboxUser mailboxUser mailboxPartially SupportedWhen the usage of mailboxes exceeds storage quota, they also can be migrated.Inactive mailboxes and mailboxes of users who are blocked from signing in are supported in Exchange Online Migration.If the license is removed from the source user in the Microsoft 365 admin center before the migration of the user mailbox, note the following:When the litigation hold setting is enabled for the user, the user mailbox can be migrated.When the litigation hold setting is not enabled for the user, the user mailbox can only be migrated within a period of time after removing the user license.When the destination is a Google Group, only users/groups with Full Access to the source user mailbox can be migrated as Google Group members. If a full-access user is mapped to a banned user, the banned user can still be added as a member.*Note: If a user is already added to the destination group as a member, manager, or owner, the migrate group permission process will not update that user’s role.
    Mailbox
    Microsoft 365 Group mailboxMicrosoft 365 Group mailboxMicrosoft 365 Group mailboxPartially SupportedPartially SupportedWhen the destination is a Google Group:Emails larger than 25MB cannot be migrated.For multiple emails with the same Message ID, only one will be migrated.Emails will be unread in the destination after migration.Once emails are migrated to a Google Group, subsequent jobs cannot update them (e.g., read/unread status), as conflict resolution does not apply.All emails will be migrated to the Conversations in the Google Group without labels applied.Calendar cannot be migrated when the destination is a Google Group.
    Mailbox
    Shared mailboxShared mailboxShared mailboxPartially SupportedPartially SupportedWhen the destination is a Google Group:Emails larger than 25MB cannot be migrated.Emails in the Draft folder or draft emails in other folders cannot be migrated and will be skipped by default.For multiple emails with the same Message ID, only one will be migrated.Emails will be unread in the destination after migration.Once emails are migrated to a Google Group, subsequent jobs cannot update them (e.g., read/unread status), as conflict resolution does not apply.All emails will be migrated to the Conversations in the Google Group without labels applied.Only users/groups with Full Access to the source shared mailbox can be migrated as Google Group members. If a full-access user is mapped to a banned user, the banned user can still be added as a member.*Note: If a user is already added to the destination group as a member, manager, or owner, the migrate group permission process will not update that user’s role.Calendar, contacts, tasks, and rules cannot be migrated to Google Groups.
    Mailbox
    Resource mailboxResource mailboxResource mailboxWhen the destination is a Google Group, only users/groups with Full Access to the source resource mailbox can be migrated as Google Group members. If a full-access user is mapped to a banned user, the banned user can still be added as a member.*Note: If a user is already added to the destination group as a member, manager, or owner, the migrate group permission process will not update that user’s role.
    Mailbox
    Archive mailboxArchive mailboxArchive mailbox
    Mailbox
    Scheduling mailboxScheduling mailboxScheduling mailbox××
    Mailbox propertyMailbox propertyMailbox propertyHide from global address list (GAL)××
    Mailbox propertyMailbox propertyMailbox propertyGeneral Information××
    Mailbox propertyMailbox propertyMailbox propertyBooking options××
    Distribution list/Mail-enabled security groupDistribution list/Mail-enabled security groupDistribution list/Mail-enabled security groupDistribution list/Mail-enabled security group××
    Dynamic distribution listDynamic distribution listDynamic distribution listDynamic distribution list××
    Mailbox folderInboxInboxInbox
    Mailbox folderSent ItemsSent ItemsSent Items
    Mailbox folderDeleted ItemsDeleted ItemsDeleted Items
    Mailbox folderDraftsDraftsDraftsWhen the destination is a Google Group, the Drafts folder will be skipped by default.After migrating a draft, if you edit the source and destination drafts and run an incremental job to migrate the draft, the destination draft cannot be overwritten and the source edited draft will be migrated as a new draft.
    Mailbox folderArchiveArchiveArchiveEmail in archive folder will be migrated to destination without any labels.A suffix -migrated will be added to the destination folder.
    Mailbox folderConversation HistoryConversation HistoryConversation History
    Mailbox folderNotesNotesNotes××
    Mailbox folderRSS SubscriptionsRSS SubscriptionsRSS SubscriptionsOnly the RSS Subscriptions folders can be migrated to the destination. The items in RSS Subscriptions folders cannot be migrated.
    Mailbox folderCustom FolderCustom FolderCustom FolderIf the source custom folder name is the same as a destination reserved label, a suffix -migrated will be added to the destination label.The custom contact folder is not supported in the migration.
    Mailbox folderJunk EmailJunk EmailJunk EmailPartially SupportedPartially Supported
    Mailbox folderContactsContactsContacts××
    Mailbox folderCalendarCalendarCalendarPartially SupportedPartially SupportedThe Other Calendars are not supported in the migration.The Calendar Group is not supported in the migration.The meeting links are not supported in the migration.The link of a Skype for Business meeting on the calendar will not be replaced with the destination link after the migration. If you do not keep the domain of the source environment to the destination, enable the Replace email addresses of senders/recipients based on user mappings setting in the migration policy to replace the recipients’ email addresses with the corresponding email addresses in the destination. However, source users of calendar items created in a public folder cannot be replaced with the destination users due to API limitations.● If user mappings are not configured for users related to the source calendar event, the calendar will be added as the event attendee after the migration.● Only built-in calendar folder of source user/shared/resource mailbox can be migrated when the destination is a calendar resource. ● Birthday folder cannot be migrated. ● Embedded images inserted in source event description will be migrated as attachments on destination.Attachments inserted via Outlook Item cannot be migrated.The HTML format for the event body cannot be kept in the destination.
    Mailbox folderJournalJournalJournal××
    Mailbox folderRecoverable Items foldersDeletionsDeletionsOnly emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersVersionsVersions××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersPurgesPurges××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersAuditsAudits××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersDiscoveryHoldsDiscoveryHolds××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersCalendar LoggingCalendar Logging××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderRecoverable Items foldersSubstrateHoldsSubstrateHolds××Only emails in the Deletions folder can be migrated. These emails will be migrated to the destination Trash label and applied with a Recoverable Items label.
    Mailbox folderTasksTasksTasks××
    Mailbox folderSync IssuesSync IssuesSync Issues××Sync Issues folders hold the synchronization logs that record any general problems or delays in syncing with the email server. These folders are skipped in the migration because they may contain many logs that will affect the migration performance and consume storage space in the destination.
    Mailbox folderSearch FoldersSearch FoldersSearch Folders××Search folders are virtual folders that do not contain any actual items.
    Mailbox folderSnoozedSnoozedSnoozed
    Mailbox folderHidden folderHidden folderHidden folder××
    Mailbox itemEmailEmailEmailOnly the title and body of the source meeting requests can be kept.
    Mailbox itemPostPostPost
    Mailbox itemAppointmentAppointmentAppointmentPartially SupportedPartially SupportedAppointment is a calendar item and follows the limitations of calendars.
    Mailbox itemMeetingMeetingMeetingPartially SupportedPartially SupportedMeeting is a calendar item and follows the limitations of calendars.
    Mailbox itemContactContactContactPartially SupportedPartially SupportedIf the “Migrate event, task, and contact attachments to Google Drive for the destination user mailbox” option is not selected in the migration policy, the contact note attachments cannot be migrated. If the option is selected, contact note attachments will be added as links to the note.
    Mailbox itemTaskTaskTaskPartially SupportedPartially SupportedThe Repeat property of the task cannot be kept in the destination.The assignees of the task cannot be kept in the destination.If you clear mapping reports, then rerun a migration job, this will result in duplicate tasks in the destination.The Start Date, Status, Priority, Reminder, Follow-up, Category, and Task Recurrence fields cannot be migrated because they are not supported in the destination system.
    Mailbox itemNoteNoteNote××
    Mailbox itemJournal EntryJournal EntryJournal Entry××
    Mailbox itemConversationConversationConversation
    Mailbox itemAuto-complete listAuto-complete listAuto-complete list××
    Mailbox item propertyAssign PolicyAssign PolicyAssign Policy××
    Mailbox item propertyPin/UnpinPin/UnpinPin/Unpin××
    Mailbox item propertyFlagFlagFlagItems will be applied with a starred label after the migration.
    Mailbox item propertyMark as Read/UnreadMark as Read/UnreadMark as Read/Unread
    Mailbox item propertyImportanceImportanceImportanceItems will be applied with an Importance label after the migration.
    Mailbox item propertyFollow UpFollow UpFollow UpItems will be applied with a starred label after the migration.
    Mailbox item propertyCategoryCategoryCategoryThe categories will be replaced with a label with the same name as the source categories in the destination.
    Mailbox item propertyTo-Do listTo-Do listTo-Do list
    Mailbox item propertySensitivity label of emailSensitivity label of emailSensitivity label of emailPartially SupportedPartially SupportedFly does not migrate sensitivity labels but allows you to remove source sensitivity labels from emails.*Note: If an email contains an attachment, and that attachment itself has a sensitivity label, the sensitivity label of the embedded attachment cannot be removed.
    Mailbox item propertyReply status of meeting participantsReply status of meeting participantsReply status of meeting participants
    Mailbox item propertySharing PermissionsSharing PermissionsSharing Permissions××
    Global contactGlobal contactGlobal contactGlobal contact××
    Mailbox delegationsUser mailboxUser mailboxUser mailbox××
    Mailbox delegationsResource mailboxResource mailboxResource mailbox××
    Mailbox delegationsShared mailboxShared mailboxShared mailbox××
    Mailbox delegationsMicrosoft 365 GroupMicrosoft 365 GroupMicrosoft 365 Group××
    Mailbox delegationsDistribution list/Mail-enabled security group/ Dynamic distribution listDistribution list/Mail-enabled security group/ Dynamic distribution listDistribution list/Mail-enabled security group/ Dynamic distribution list××
    Distribution list/Mail-enabled security group/Dynamic distribution list settingsDistribution list/Mail-enabled security group/Dynamic distribution list settingsDistribution list/Mail-enabled security group/Dynamic distribution list settingsDistribution list/Mail-enabled security group/Dynamic distribution list settings××
    Outlook settingsOutlook configurationUser profilesUser profiles××
    Outlook settingsOutlook configurationSignaturesSignatures××
    Outlook settingsEmail forwardingEmail forwardingEmail forwarding××
    Outlook settingsOutlook quick action settingOutlook quick action settingOutlook quick action setting××
    Outlook settingsAutomatic Replies (Out of Office) settingsAutomatic Replies (Out of Office) settingsAutomatic Replies (Out of Office) settings××
    Outlook settingsInbox rulesInbox rulesInbox rulesPartially SupportedPartially SupportedRefer to the Exchange Rule to Gmail Filter Mappings section to view the Exchange inbox rule to Gmail filters mappings.

    Note the following:

    - If the source category is a reserved label in Gmail, a suffix **-migrated** will be added to the destination label to avoid conflicts. - If the source mail folder name exceeds Google’s limit of 255 characters. Only 255 characters of the name can be kept in the destination. - Emails in the subfolders of the source Inbox folder will be migrated to the destination system Inbox label. Emails in the subfolders of other source built-in folders (Sent Items, Drafts, Deleted Items, etc.) will be migrated to corresponding system labels in the destination and applied with a destination system label corresponding to the source built-in folder. - If the source email contains a calendar as attachment, select the option in the migration policy to migrate email attachments to Google Drive. - If you clear mapping reports, then rerun a migration job, this will result in duplicate tasks in the destination.