Tenant-to-Tenant Migration with Orchestrator – Technical Overview (Microsoft 365 | Preview)
Tenant-to-tenant migration with Orchestrator in Microsoft 365 introduces a native, API-driven, and highly validated approach for cross-tenant migrations. It is designed for enterprise scenarios where sequencing, dependencies, and governance are critical. Note: This capability is currently in preview. Features and behavior may change before GA. Architecture and execution model Migration is executed through batches (jobs) managed via Microsoft Graph (Beta) User-level execution: one user failing validation does not block others in the same batch Mandatory Standalone Validation before migration submission Date-driven cutover using completeAfterDateTime Supported workloads (actual scope) Exchange Online Microsoft Teams ODSP (OneDrive for Business) Important clarification on SharePoint Orchestrator does not migrate shared SharePoint content such as Team sites, Channel sites, or collaboration sites. The ODSP workload covers personal user data (OneDrive) only. SharePoint team/workload sites remain out of scope and require separate tooling or processes. Critical prerequisites Identity Mapping (CTIM) is mandatory and must remain stable during migration Target users must not have Exchange mailboxes or OneDrive sites provisioned before migration Licenses must be assigned only after Identity Mapping (ExchangeGuid stamping) Migration apps and service principals (Teams, Meetings, CTMS) must be correctly provisioned Organization Relationships and Migration Endpoints must be in place Exchange autoforwarding must be enabled for Meetings migration Validation and lifecycle Standalone Validation acts as a full “what-if” check Key states include: Cancellation or user removal is possible only before cutover Post-migration cleanup After completion, tenants must be returned to a non-migration state: Remove Identity Mapping data Remove Organization Relationships Remove Migration Endpoints Revoke migration app permissions and service principals Decide whether to retain or remove MailUsers in the source tenant Skipping cleanup leaves the tenant in an exception state. When this approach fits Mergers and acquisitions Divestitures and tenant splits Regulated environments requiring strict control Scenarios where dependency-aware sequencing matters more than speed Technical conclusion Orchestrator is not a one-click solution. It delivers native orchestration, deep validation, and predictable execution when Identity Mapping, licensing order, and scope boundaries are fully understood. For experienced administrators and architects, it represents a major step forward in tenant-to-tenant migrations within Microsoft 365, even while still in preview.
O365 groups disappear on Outlook
Hi all, I've an issue with my O365 groups. When I right click on my Groups, I can browse all the groups and select one of the to add myself on it. Unfortunately, few seconds after adding this group to my list, it disappears and I cannot see it in my list. I see I'm a member of the O365 group my I'm not able to add it in my list. When I go the the Outlook online, in some groups I see "follow in the inbox" and not for the other ones. Please someone can give me a solution? Is it possible to recreate the group?Receive message in inbox - Office 365 Group
Good night; I have a question, I have created an Office 365 group and it has 5 members, when I send an email to that group it does not reach the inbox but it does reach the group tray. Now, there is an option in which I have checked the box called: "Send copies of all messages and events of the group to the inboxes of the members" but when I have done a test it also does not reach the inbox of any member of the group. Is there a time to wait?Shared contacts list on group
I have a group with 5 people that has a group mailbox like mailto:sales@contoso.com, I would like that every member can look and add contact to the contact list of that mailbox... Is it possibile ? Is there a way to have a shared contact list between member of the same group ?Office 365 Groups will become Microsoft 365 Groups (crosspost)
Hi all, Cross-posting information from the Microsoft 365 Blog where Scott Schnoll announced recently that Office 365 Groups will become Microsoft 365 Groups. https://techcommunity.microsoft.com/t5/microsoft-365-blog/office-365-groups-will-become-microsoft-365-groups/ba-p/1303601 Looking forward to the future of Microsoft 365 Groups! Mike
Gruppen in Teams gelöscht
Hallo zusammen, für meinen Online-Unterricht habe ich eine Gruppe in Teams erstellt. Irgendjemand hat jetzt zum 2. Mal diese Gruppe gelöscht! Können Schüler dies tun, obwohl sie nur als Gäste in der Gruppe sind oder war es einer meiner Kollegen als Mitglied der Gruppe? Und wie kann ich die Gruppe wiederherstellen? Ich finde leider keinen Hinweis auf "Wiederherstellen einer Gruppe"
