Power Platform Enterprise Architecture

There are a myriad of new features being released to Dynamics 365 and the Power Platform right now. It’s tempting to try out new features and, perhaps push a new feature through to production if you or your customer is willing or agile enough. For some larger organisations however, there’s more of an importance placed on standards and governance than ensuring the continued agility of getting new features and new applications quickly to production.

But how do, or how should Enterprise Architecture standards apply to those of us who have invested our time in these newfangled Power Platform based solutions. How can we ensure an organisations approach is both agile and structured?

Citizen Developer & No-Code / Low Code

Let’s consider the ‘Citizen Developer’ term, which Microsoft actively use to market the Power Platform. Citizen Developers are not professional programmers, but business users who have the technical understanding to solve problems using non-code or low-code platforms such as Canvas PowerApps and Dynamics 365. This is great! Citizen Developers can build both Shitty First Drafts and production ready applications without having to know the traditional software considerations such as DRY (Don’t Repeat Yourself), Composition / Inheritance and Separation of Concerns.

They can get their drafts into production quickly, solving business needs and making the business more productive. Things ‘just work’ and this is as a result of business users being able build things themselves quickly. The are immediate business benefits. However, consider the following two scenarios, 30 years apart.

cusco

A Case Study from October 21st 1995

Marty is working with for Cusco, a company which had grown quickly, recruiting hundreds of new employees in the space of a year.

Employees were solving their same problems in different ways in different departments by creating different spreadsheets and macros.

Each department had their specific needs, and each area had an emotional attachment to their own solution.

An audit revealed that there were hundreds of versions of the same company ‘standard’ spreadsheet with an amended macro on each, tailored for each team’s ‘unique’ needs.

A story from October 21st 2025

Marty Junior is one of many tech savvy business users Cusco has employed in the year 2025. The Power Platform has gone from strength in the previous six years and now these business users can build fully functioning consumer PowerApps, Portals and AI applications.

Without any governance, guidelines or standards PowerApps have grown dramatically and different departments are rolling them out to customers.

In the Power Platform admin console there are hundreds of CDS instances, Flows and PowerApps. No one is sure who owns what.

Get some structure to your data stores

Most organisations realise the need for some governance to solve the types of problems encountered above. Moving everything onto the Power Platform consolidates your applications onto a single platform and stack, but unchecked but there’s still a lot of potential for application sprawl and data duplication within the platform.

If there are multiple CDS instances, can you really call it your company ‘Common’ Data Service? Is an unchecked Power Platform much better than lots of different types of spreadsheets being emailed around like we used to have back in the day?

Right now, users who are licensed with a PowerApps P2 licence – or the upcoming PowerApps ‘Per User’ – licence are no longer bound to having a limited number of environments. As long as your storage entitlement can handle it, users with permissions can create as many CDS environments as they like.

This should prompt any business to ask themselves some questions :

  • If we are empowering business users to build Canvas PowerApps, shouldn’t we ensure that they point their PowerApp to an appropriate CDS and not a spreadsheet?
  • Who decides how many CDS applications there should be?
  • Is there value to allowing users to point PowerApps to non-standard CDS data stores and third party services via Flow?
  • Are there security concerns or juristiction issues with using such third party services?
  • How can we encourage and empower staff to build line of business applications to benefit the business and still have strong data governance?
  • What sort of architecture should we have around a customer facing portal and how should our portal be designed?

How many Common Data Services should I have?

To me, a CDS is not really a Common Data Service when there is no information governance around what is being created and why. Enterprise Architecture principles need to be applied to make sure the right type of data is being stored in the right place by the right people. This probably sounds like I am recommending only having one CDS at this stage, but this is not necessarily so.

I was recently performing a Dynamics 365 for Talent installation which made me think in more detail about scenarios where it may make more sense to have multiple CDS instances. This organisation already had a working Dynamics 365 CE environment used for Sales and Marketing. During the installation, it’s up to the user to decide whether or not to create a new CDS installation or point it to an existing D365CE instance. In the end, we decided HR data should be stored in its own dedicated CDS because the data contained within was sensitive and unrelated to that in the D365CE instance.

Things to consider when creating new Common Data Services and PowerApps

  • Have an owner in your business responsible for deciding on how your Power Platform applications should be governed.
  • Consider if there are there ‘chinese walls’ between departments in your business. For example, law firms may have divisions that should not be entitled to see information from other divisions. Having a single view of the customer may be a very bad thing! HR information is one key one where a new CDS would seem logical.
  • How hard is it going to be to synchronise information from one CDS to another if you opt for a new CDS?
  • Can you logically segment information using traditional Dynamics 365 style roles and hierarchy security instead of simply opting for a new CDS?
  • Don’t be too restrictive with governance which can stifle agility and getting things done, but do track app creation, whether its with CDS model driven apps or Canvas applications.
  • Give the PowerApps Environment Maker role to technical evangelists in the company who have received some training.
  • Use a Canvas and Model Driven app to record and approve all the different Canvas and Model Driven applications in your organisation and the reasons for having them.
  • Consider disabling CDS creation as per Tip 1268 for the majority of users. New CDS environments should only be created after some level of approval.

The platform is changing so quickly – undoubtedly we will start to see better practices, standards and tooling to support such governance and policy support.

In the meantime, don’t just wing it, get some structure to your data stores and processes!

One thought on “Power Platform Enterprise Architecture

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