Off 2016 SharePoint
Shelter moved from a 2016 SharePoint intranet to modern SharePoint, mostly out of the box, with retention labels and policies to keep content governed.
SharePoint Server end of support
SharePoint Server 2016 and 2019 are out of support.
Microsoft ended support for SharePoint Server 2016 and 2019 on 14 July 2026, so there are no more security updates, bug fixes or technical help for either version. We move you to SharePoint Online with a structured 12-week programme, or advise on Subscription Edition if you have to stay on-premises.
What to read next
Moving off SharePoint Server.
Leaving SharePoint Server usually brings up other decisions, from migration tooling to what the new intranet looks like. These pages cover them.
SharePoint migration services
How we move on-premise SharePoint, file shares and other platforms to SharePoint Online.
Classic SharePoint end of life
Add-Ins, ACS and 2013 workflows stopped working in Microsoft 365 in April 2026.
ShareGate
The tool we use alongside SPMT to move content in phased batches.
SharePoint governance
Permissions, provisioning and ownership designed for the new environment.
Out of the box intranet
A modern SharePoint intranet to replace an on-premises one.
Sovereign intranets
An intranet hosted in your region if data residency is the reason you stayed on-premises.
14 July 2026
SharePoint Server 2016 and 2019 reached end of support
12 weeks
for our structured migration programme to SharePoint Online
2 weeks
of hypercare support after go-live
How we work
How a SharePoint Server migration runs.
01
Discovery
Weeks 1 to 2: a full inventory of site collections, content databases, custom web parts, workflows, integrations and permissions, including InfoPath forms and SharePoint Designer workflows that need replacing.
02
Design
Weeks 3 to 4: the target SharePoint Online structure, covering hub sites, provisioning standards, metadata, content types and retention labels, reflecting how your teams work.
03
Build
Weeks 5 to 10: content moved in phased batches with ShareGate and SPMT, business-critical sites first, then user acceptance testing with staff from each department.
04
Train
Training for users and site owners on SharePoint Online, Teams and OneDrive, so they are ready before cut-over.
05
Go live
Weeks 11 to 12: remaining users cut over, DNS redirected and on-premises farms decommissioned, with 2 weeks of hypercare support.
Client feedback
What it is like to work with us.
“ThinkShare were a delight to work with and supported us every step of the way with great client service and strong technical expertise.”
“The migration went very smoothly, and our new intranet ensures our data is secure and easily accessible.”
Case studies
Case studies we have delivered.
Read the Shelter case study
Migrated without a hitch
CitNOW's data was migrated from the old setup into a SharePoint intranet and document management system, and the migration went smoothly.
FAQ
Frequently asked questions.
When did support end for SharePoint Server 2016 and 2019?
On 14 July 2026. Microsoft no longer provides security updates, bug fixes or technical support for either version.
What is the risk of staying on SharePoint Server?
Any vulnerability found since 14 July 2026 stays unpatched, which can put Cyber Essentials, ISO 27001 and GDPR compliance at risk, and Microsoft Support will no longer troubleshoot issues.
How long does a migration to SharePoint Online take?
Typically 8 to 16 weeks depending on content volume, number of site collections and customisations. We recommend a structured 12-week programme covering discovery, architecture, migration, testing and go-live.
Can we upgrade to SharePoint Server Subscription Edition instead?
Yes, if regulatory or data sovereignty requirements mean you must stay on-premises. SharePoint Online is our recommended route for automatic updates, Microsoft 365 integration and less infrastructure to run.
Book a call about your SharePoint Server migration.
Tell us what you are working on and we will come back to you within one working day to arrange a call.