When a regulated organisation's case-management contract comes up for renewal, the reflexive next step is to go shopping for a replacement product. It is the path of least resistance: the market is full of specialist legal-and-regulatory case-management platforms, each promising configurability out of the box. But there is a prior question worth asking before any procurement begins - do we need to buy a new system at all, or should we build this capability inside the Microsoft 365 tenant we already own?

This is not a rhetorical question with an obvious answer. Both routes are legitimate. But the balance has shifted, and it is worth understanding why - and where each option genuinely wins.

The case for building native

The strongest argument for building on Power Platform, SharePoint and Dataverse is that you already have it. For an organisation standardised on Microsoft 365, the platform offers native integration with Teams, Outlook, SharePoint and Dataverse, and Azure-grounded security and identity management. Your case records, the documents that evidence them, the reviews that govern them and the reports that oversee them can live within one estate, under one security model, using tools your team already knows.

The cost argument is real too. Organisations that move a case and document estate off a standalone legacy product and onto Microsoft 365 frequently find they can switch off expensive legacy licences while improving findability, compliance and auditability. And the market has clearly moved this way: the case-management software market is growing fast, with public-sector modernisation and the need to move away from legacy case systems named among the primary drivers, alongside a broader shift in which the great majority of new applications are expected to be built on low-code technologies.  

Above all, building native keeps your most sensitive operational data under your own governance, on a platform whose roadmap you are already invested in - rather than on a third party's.

Where a specialist product still earns its place - honestly

It would be a disservice to pretend the specialist route never wins. A dedicated product arrives with a great deal of casework logic already built, refined across many similar customers, and maintained by a vendor whose entire roadmap is that one domain. If your processes are highly standardised, closely match a vendor's out-of-the-box model, and you have neither the appetite nor the internal capability to own a build, a mature specialist product can be the lower-effort choice - at least at the outset.

The trade-off is the one this whole discussion keeps returning to: you gain speed and give up ownership. The data sits in their system, the enhancements follow their roadmap, and the exit - when it comes, as it has for the organisations now reading this - is another migration project.

A decision framework

Rather than a verdict, here is the test we apply with clients:

Build native when your data governance requires the records to stay in your own tenant; when you are already standardised on Microsoft 365; when auditability and a single controlled information model matter more than out-of-the-box breadth; when you want to own and enhance the solution internally over time; and when your processes are distinctive enough that you would be configuring a specialist product heavily anyway.

Consider a specialist product when your processes closely match a vendor's proven model; when you need very domain-specific functionality you could not economically build; when you have no wish to hold any internal platform capability; and when speed to a working system outweighs long-term ownership.

For most regulated and public-sector bodies with distinctive casework, a governance-first culture and an existing Microsoft investment, the native build now wins on the criteria that matter - provided it is done with discipline.

The condition attached to "build"

That condition is not a footnote. Native build only delivers its promise if governance is designed in from the start. This is where organisations either succeed or generate the "spreadsheet chaos" of a previous era at a larger scale. Encouragingly, the discipline required is now well understood - governance has matured from a centralised brake into a shared enabler, focused on maintaining security and compliance without slowing delivery.

VE3's Power Platform Centre of Excellence Readiness Framework exists to make that condition explicit - assessing licensing, governance, data, security, application lifecycle management and adoption before a line of configuration is written, so the whole-life cost and the ownership model are clear at the point of decision, not discovered afterwards.

The right answer is not "always build" or "always buy." It is to ask the prior question honestly, against your own criteria - and, increasingly, to find that the platform you already own is the one you should be building on.

VE3 helps regulated organisations assess build-versus-buy and deliver Power Platform case management on Microsoft 365. Talk to us about your options.