M365 tenant migration in Foshan
Moving M365 tenant migration in Foshan is rarely a straight copy of mailboxes. For a company operating in China it starts with a decision most markets never face: whether your users should sit on the global Microsoft tenant or the local service operated by 21Vianet — and then how to move between the two without losing mail flow, Teams history, or the audit trail your head office expects.

We run the whole sequence for foreign-owned companies in Foshan: audit first, then tenant and licence design, then the cutover, then the weeks of settling-in while the small faults surface. Nobody enjoys a migration; the job is to make it unremarkable.
Why M365 tenant migration in Foshan is not like migrating anywhere else
Treat the two clouds as different products, because that is what they are. Licences differ, some features behave differently, and performance comes down to how traffic leaves your office and where it joins Microsoft’s network. Then there is the compliance angle: where personal data may legally sit, and what you can hand to a regulator or a head office when they ask.
We audit before anyone touches a mailbox: licence entitlements, domains and DNS, mail flow rules, Teams and SharePoint usage, identity configuration, and which devices are enrolled where. Typical migrations take a few weeks from audit to cutover.
The scope we move
- User and shared mailboxes, plus the mail-flow rules around them
- Teams, channels and chat history, where the move allows it
- SharePoint and OneDrive content, with permissions verified on both sides
- Identity — Entra ID, groups, authentication and conditional access
- Endpoint policy and Intune device enrolment
- DNS records, domains, and the licence position on the new tenant
User mailboxes move first, then the collaboration content, so people keep working while the rest follows.
How a migration runs
- Audit the current tenant and the actual business requirements
- Design the destination — tenant choice, licensing, routing
- Run a pilot group and record what actually changes for users
- Cut over in a planned window; we schedule it around your team’s calendar
- Hypercare — we stay on for the fortnight after cutover, while the small faults surface
- Leave you with documentation, and keep supporting the estate afterwards
Where we work
We are not a single-city provider. NETK5 dispatches engineers across mainland China: our own team is based in Shanghai, Beijing, Guangzhou and Hong Kong, and we staff projects elsewhere in the country as clients need them — Xi’an, Chengdu, Taixing and beyond. Outside China we have delivered rack-and-stack work and WiFi surveys in Japan, Korea, Singapore and Taiwan, usually for international companies coordinating several sites from a head office that has never been on site.
For M365 tenant migration in Foshan that matters in a practical way: work can be planned around a visit rather than a relocation, and the same team that surveys or installs can hand over documentation the head office can actually use.
Our experienceOur China practice dates back to 2002 and Microsoft 365 work sits at its centre. We ran a pilot migration from the global tenant to 21Vianet for a client here, and we run cloud estates day to day — one of them more than thirty Azure virtual machines alongside Microsoft 365. Siemens, Nestlé, McKinsey and JLL are among the names we work with, generally alongside the international IT firms whose client sites we support.
Questions we get asked
Do we have to move to 21Vianet if we are in China?
Not necessarily. Many foreign-owned companies stay on the global tenant quite happily; what you trade is performance, routing, and the ease of evidencing how data is handled. We also see the reverse, 21Vianet back to global, when a company restructures or exits. It depends on your users, your regulator and your head office — which is exactly why we audit first.
How long are users without email?
In a well-planned cutover, not at all in any meaningful sense: mail flow switches in a window and users sign in again afterwards. What takes time is the settling-in — profiles, devices, shared mailboxes, and the occasional Teams channel that behaves unexpectedly.
Can you support us after the migration?
Yes, and a good share of our migration work becomes ongoing support — helpdesk in English and Chinese, monitoring, and someone who already knows how your tenant was built.
Talk to us about M365 tenant migration in Foshan
Tell us what you have now and what you need to end up with — tenant, users, sites, and any deadline driving it. We will tell you what the move involves and what it costs before anyone starts.