SharePoint migration,
for the files.
The most common migration in Microsoft 365 is a department share becoming a library. Here is how it runs, and what it costs.
File servers becoming document libraries, Google Drive and Dropbox consolidating into Microsoft 365, libraries moving between sites and tenants: Mover moves the files and the folder tree into SharePoint with a free dry run first. Mailboxes, users, groups, and permissions are a tenant migration, which is a different tool. The content is the part one person finishes this month.
File servers into libraries.
Other clouds into Microsoft 365.
Sites and tenants.
How a SharePoint migration runs.
Six steps, in order. The cloud migration guide covers the decisions around them; this is the SharePoint path through it.
Connect SharePoint once.
Sign in to Microsoft through Mover and authorize the connection. Mover lists the sites and document libraries the account can see, and any of them is a destination or a source. The SharePoint connection.
Dry run the source first.
A free dry run walks the file share, the Google Drive, or the old library, counts files, sums bytes, exercises both credentials, and prices the exact usage pack. Fifteen years of a department share is full of surprises; find them while changing the plan is free.
Map folders to libraries on purpose.
Include and exclude rules decide what moves and where it lands. One department share into one library, the archive left behind, the temp folders dropped. The structure people live with for years is set here, on the dry run, not on the Monday after.
Move in parallel while the team keeps working.
Multi-threaded transfer into SharePoint with rate limiting tuned to what Microsoft’s side accepts, retries on transient failures that never bill, and a run log with the disposition of every file.
Incremental runs, then the switch.
A difference-aware incremental run copies what changed since the bulk pass. Repeat until the delta is minutes of work, point the team at SharePoint, run one last pass, and retire the source.
Sites and tenants too.
Libraries move between sites in one tenant, and between tenants after an acquisition, with the same dry run, the same filters, and the same log. The files and the folder tree are the job; the mailboxes and identities are not.
The SharePoint pairs.
Each pair page has the specifics for that source: what SharePoint accepts, what to watch for, and how the dry run reads it. Box and OneDrive connect the same way through the catalog.

Google Drive → SharePoint
The Workspace → M365 standardization move for shared team content. Google Drive shared drives land in SharePoint sites the same way personal Drive lands in OneDrive.
Dropbox → SharePoint
The team-content half of a Dropbox → M365 migration. Dropbox shared folders and team folders land in SharePoint sites — same identity, same governance, same search.
SharePoint migration questions.
File servers, other clouds, sites and tenants, permissions, cost, and how Mover compares with Microsoft’s own tool.
Moving content into SharePoint Online, or between SharePoint sites and tenants. In practice it is three jobs that share a name: file servers and NAS shares becoming document libraries as part of a Microsoft 365 move, other clouds (Google Drive, Dropbox, Box) consolidating into SharePoint, and libraries moving between sites or tenants after a reorganization or an acquisition. Mover does all three for the files and the folder structure.
Yes, for the files. Document libraries move between sites in one tenant and between tenants, with the dry run, filters, incremental runs, and the per-file log. A full tenant migration that also moves mailboxes, users, groups, and permissions is a different job for a suite-migration platform; Mover moves the content.
It depends on the bytes and on how fast SharePoint accepts them, which is the slower side of most pairs and sets the pace. The dry run counts the bytes up front. The bulk pass runs in the background; the incremental runs are short; the switch-over is minutes.
No. The bulk pass runs with the source in service. Incremental runs copy what changed since, and the switch happens when the delta is small enough to finish between two meetings.
Permissions in SharePoint follow SharePoint’s model: sites, libraries, and Microsoft 365 groups. Mover moves the files and the folder tree; plan the site and library structure on the dry run so the destination’s sharing model is set before the files arrive, rather than mapped file-server ACLs one by one afterward.
See your SharePoint migration before a byte moves.
Connect SharePoint and the source, and run a free dry run. Mover counts the files, sums the bytes, and prices the exact pack. The migration starts when you say so.

