Google moved Microsoft Teams chat migration and Microsoft OneDrive file migration into general availability inside the Workspace admin console yesterday evening, pitched as a turnkey exit from Microsoft 365 and "available at zero tool cost." Rollout is immediate on both Rapid and Scheduled Release, with no gradual hedge — genuinely shipped, across most Business, Enterprise, Education, Frontline and Nonprofit editions. A Workspace super admin is required.
What the common framing gets wrong
"High fidelity" is the headline claim and the weakest part of it. Google's own help page listing what is imported from Teams excludes, verbatim: "File attachments" — whether stored in OneDrive or SharePoint or uploaded from a user's computer — plus pasted pictures and stickers, custom emojis and emoji reactions, underlining and rich text formatting, nested lists, and bot messages. Tables and code snippets do migrate, after a fashion: they appear as the literal placeholder strings Missing_Table and Missing_Code_Snippet. Any thread longer than 500 messages imports only its first 500 replies.
File attachments are the single thing most Teams channels are actually used for. The announcement never mentions any of this — it links to the page that does.
'Zero cost' is the tool, not the migration
You still pay for Workspace seats. You still need an administrator to stand up an application on the Microsoft side. And throughput is, in Google's words, automatically adjusted "to match your Microsoft licensing tier" — so the advertised speed depends on how much Microsoft you are still buying. Batches cap at four concurrent, 5,000 users each.
It is also not a new product
This is two more source connectors on a data-import service Google launched in April 2026. "Google launches Microsoft 365 migration tool" overstates it; "Google GAs Teams and OneDrive as import sources" is the accurate version.
Why give it away
Migration tooling is what third parties charge per seat for, and switching cost is the core of Teams and OneDrive lock-in. Removing that cost while both vendors sell AI seats is a direct margin attack. The attachment gap is what every IT buyer will hit in week one.