The corporate intranet is dead. Long live the corporate intranet. In 2026, SharePoint Online no longer looks anything like the static portal of the 2010s. With Hub sites, Viva Connections and native integration into Microsoft Teams, the intranet has become a modern, mobile and personalised employee experience. According to Gartner research on the Digital Workplace, organisations that modernise their intranet on SharePoint see an average 25% increase in employee engagement with internal communication. Here is the complete method to build a high-performing SharePoint Online intranet.
In most small and mid-sized companies, the intranet is one of the most repeatedly postponed projects. The legacy portal, often running on-premises SharePoint 2013 or 2016, has become cluttered, packed with outdated documents and barely consulted. According to McKinsey research on internal communication, fewer than 35% of employees visit their intranet daily, while they spend on average nearly 30% of their time searching for information.
Yet SharePoint Online in 2026 bears no resemblance to the picture many people still have in mind. The service has been thoroughly rebuilt around four pillars: fully responsive modern sites, native integration into Teams through Viva Connections, semantic search powered by Microsoft Search, and audience-based personalisation. According to the SharePoint blog on the Microsoft Tech Community, more than 200 million monthly active users now rely on SharePoint Online worldwide.
In short, the question is no longer “is SharePoint a good tool?” but “how do you use it properly to build an intranet that people actually find useful?” Here is the method.
Three signals tell you it is time to modernise:
On top of that, data-protection rules have tightened across Europe and Switzerland, reinforcing the obligations around document classification and access management. A legacy intranet with weak governance quickly turns into a genuine legal risk.
SharePoint Online now relies on a very different logic from the old model of hierarchical site collections. Everything starts with three site types:
A top-down broadcasting site. Ideal for corporate communication, HR news and guidelines. Few editors, many readers.
A collaborative site tied to a Microsoft 365 group and a Teams channel. Every team or project gets one. Shared editing, restricted access.
The hub is the backbone of the modern intranet. It aggregates several sites and provides unified navigation together with a consistent visual theme. In practice, your 2026 intranet looks like this:
This architecture, described in the official SharePoint Online documentation, guarantees visual consistency and organisational flexibility. In particular, you can reorganise how sites are attached without rebuilding everything.
Microsoft Viva Connections is arguably the missing piece that justifies modernisation on its own. In concrete terms, Viva Connections turns your SharePoint Hub site into a full application accessible from Microsoft Teams and from the Teams mobile app, on both smartphone and tablet.
Microsoft has also made Viva Connections free for every Microsoft 365 E3/E5 subscription, which is drastically accelerating adoption. Put simply, not enabling Viva Connections in 2026 means passing up a major UX overhaul of your intranet that costs you nothing.
Modernising an intranet is not just a technical exercise. Without governance, you recreate the chaos of the old portal within six months. Three levers to put in place from day one:
Enable Microsoft Purview and roll out sensitivity labels (Public, Internal, Confidential, Highly Confidential). These labels then drive access, encryption and how documents can be exported.
Set up automatic annual review policies: every site owner receives a notification asking them to confirm the site is still needed. Sites that go unreviewed are archived and then deleted after a grace period.
Officially designate certain sites as the “source of truth” (official HR policies, quality processes). These sites get a visual badge that reassures users and boosts their ranking in Microsoft Search.
For this level of oversight, structured administrator training becomes essential. That is exactly the focus of our SharePoint Online Management and Administration (55370) course, which covers planning, configuration and day-to-day administration.
Migrating an existing intranet takes method and phasing. Here is a sequencing that has proven itself on real-world projects:
| Phase | Duration | Key deliverables |
|---|---|---|
| 1. Legacy audit | 2 to 4 weeks | Site mapping, sorting live content from obsolete content |
| 2. Target architecture | 2 to 3 weeks | Hub sites plan, visual identity, audience plan |
| 3. Pilot build | 4 to 6 weeks | Central hub + 2 or 3 communication sites, finished design |
| 4. Content migration | 4 to 12 weeks | Using the SharePoint Migration Tool (SPMT) or ShareGate |
| 5. Change management | ongoing | Communication, user training, ambassadors |
| 6. Legacy decommissioning | 2 to 4 weeks | Read-only archive, URL redirects |
The classic mistake is trying to migrate everything at once. Instead, favour a gradual approach with a pilot on a single department (typically HR or internal communication) before rolling it out more widely.
A successful intranet is a measured one. Without targets defined up front, you will know neither whether the project succeeded nor how to improve it. Here are the indicators to track from launch, using the analytics built into SharePoint and Microsoft 365.
Set your own internal targets based on the baseline you measure over the first three months. These targets vary widely depending on your industry, your size and your scope. Complement them with a satisfaction survey every six months: the numbers alone will not tell you whether people find the intranet useful.
Beyond Hub sites and Purview governance, Microsoft has deeply enriched SharePoint with a dedicated AI layer: Microsoft Syntex, rebranded as SharePoint Premium. For a 2026 intranet, this is arguably the most impactful development after Viva Connections.
SharePoint Premium lets you train AI models to automatically classify the documents stored in your libraries. In practice, as soon as an employee uploads a contract, an invoice or a specification, the system detects the document type, applies the matching sensitivity label, extracts the key metadata (contract number, date, supplier) and files the document in the right place. This automation removes hours of manual data entry every week for administrative teams.
Combined with Microsoft 365 Copilot, SharePoint Premium can automatically generate summaries of long documents, extract clauses from contracts, or compare several versions of the same document. For a legal or procurement team, this is a genuinely new capability that changes how people deal with document volume.
SharePoint Premium runs on a pay-as-you-go model, separate from standard Microsoft 365 licences. Each AI operation (classification, extraction, summary) consumes a predefined number of credits. This model lets you test gradually without a heavy budget commitment, but it does require careful governance to avoid cost overruns under heavy usage.
Organisations adopting SharePoint Premium typically target three high-ROI use cases: automatic classification of supplier contracts, structured extraction of invoice data, and document compliance (automatically flagging documents that do not meet a policy). On their own, these three cases justify the investment for most industrial or service companies.
Ignoring SharePoint Premium in 2026 means passing up a native AI layer already built into the Microsoft 365 ecosystem. For an ambitious intranet, it is now as much a strategic pillar as Viva Connections.
Building a modern intranet on SharePoint Online in 2026 is no longer a question of tools, but of method and governance. Hub site architecture, Viva Connections integration and Purview governance now give you every building block you need. The difference is made in the delivery: an honest audit of the legacy, gradual phasing and genuine change management.
For a mid-sized company, a well-run project takes between 4 and 9 months, from scoping to full rollout. The return on investment, measured in time saved searching for information and in employee engagement, is usually visible within the first year.
Is SharePoint Online included in Microsoft 365?
Yes, from the Business Standard, Business Premium and Enterprise E3/E5 subscriptions upwards. There is no extra cost for a basic intranet.
What is the difference between SharePoint Online and SharePoint Server?
SharePoint Server is the on-premises version, with older releases now reaching end of life. SharePoint Online is the cloud version, continuously updated, and it is the recommended standard in 2026.
How much does a modern intranet project cost?
For a company of 100 to 500 employees, budget roughly between CHF 30,000 and CHF 80,000 for the full project (architecture, build, migration, training), excluding the recurring cost of licences.
Do you need a SharePoint developer?
No, not for a standard intranet. Hub sites, standard SPFx web parts and Viva Connections are enough to cover 95% of needs without custom development. A developer is only useful for specific business integrations.
What happened to Yammer?
Yammer has been renamed Viva Engage and remains fully supported. It now serves as the community communication layer and integrates into Viva Connections.
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