Dynamics 365 is a powerful platform, it’s flexible, scalable, and designed to evolve with your organisation. But that flexibility comes with a truth most teams only discover later: your long term success depends less on the platform itself and more on the quality of the implementation behind it.
When customisations are designed well, Dynamics 365 becomes a system that grows with you. When they’re not, you inherit complexity, cost, and a platform that feels harder than it should.
This isn’t a story about what goes wrong. It’s a guide to understanding why issues happen, and how getting the implementation right from the very start can prevent them entirely.
Dynamics 365 Configuration vs Customisation: How these choices shape performance and long term support
Dynamics 365 gives you two ways to tailor the platform:
Dynamics 365 Configuration
Using what Microsoft already provides, fields, forms, views, security roles, Power Automate, model driven app tweaks. It’s fast, clean, fully supported, and upgrade friendly.
Dynamics 365 Customisation
Writing code in the form of plugins, JavaScript, custom pages, or extensions to introduce new behaviour.
Customisation is not the enemy. It’s powerful and often necessary to better fit the platform around your industry and processes. But it needs to be used intentionally.
Go Live in Weeks, Not Months
Experience the Ascent.
At Walkerscott, we start with configuration first. Our Ascent rapid deployment framework gives you a proven, pre configured foundation, meaning we don’t begin from a blank slate. This reduces unnecessary custom code, accelerates delivery, and keeps your solution aligned with Microsoft’s supported patterns.
Why some Dynamics 365 deployments become hard to maintain
Most Dynamics 365 challenges don’t come from the platform. They come from decisions made early in the rollout:
- custom code added when configuration would have been enough
- rushed delivery without proper documentation
- solutions built without considering Microsoft’s release cycle
- partners starting from scratch instead of using proven patterns
These aren’t Dynamics problems. They’re partner practice problems.
The most common pain points experienced with Dynamics 365 customisations
1. Microsoft Dynamics update surprises
Microsoft releases major updates twice a year. If custom code isn’t built using supported extension patterns, things can break.
2. Knowledge bottleneck
If only one person in your organisation understands your customisations, you’re exposed.
3. Over‑customisation
Many implementations become more complex than they need to be simply because the partner starts from scratch.
4. Partner lock‑in
Some partners keep source code, obscure design decisions, or structure solutions so only they can maintain them.
What good Dynamics 365 customisation practice looks like
A healthy Dynamics 365 implementation has a few things in common:
- configuration‑first mindset
- well‑supported extension patterns
- clear documentation
- predictable governance around updates
- a partner who explains the “why”, not just the “what”
- a handover that empowers your team, not restricts it
This also includes knowing when not to customise. Leveraging Microsoft’s out‑of‑the‑box capabilities – and proven premium Dynamics 365 extensions such as Klevr and other AppSource‑certified products – means you’re not starting from scratch. It reduces complexity, avoids unnecessary code, and gives you a cleaner, more scalable foundation.
What can you do if you’ve inherited an existing Dynamics 365 environment with these challenges?
Many leaders step into a Dynamics 365 environment they didn’t design.
A quick audit can reveal:
- what’s been customised
- whether it’s documented
- whether it follows supported patterns
- what’s still needed
- where the risks are
Clarity is powerful. It lets you decide what to keep, what to improve, and what to retire, without guesswork.
For organisations wanting a structured, evidence‑based assessment, our Dynamics 365 ERP or CRM Health Check provides a personalised report covering configuration inefficiencies, user pain points, training needs, system deficiencies, opportunities for better feature utilisation, and both quick wins and longer‑term improvements.
Whether Dynamics 365 empowers your organisation or becomes a point of frustration comes down to the decisions made during implementation.
Favouring configuration over unnecessary custom code, using proven deployment patterns, maintaining clear documentation, and keeping governance predictable all contribute to a system that performs well and is easy to support. And with a solid foundation in place, ongoing training and steady operational support simply help the platform continue to evolve as your needs grow.
For organisations looking for long‑term stability, our specialist Dynamics 365 Managed Services provides continuous improvement across all Dynamics 365 workloads – from user support and proactive monitoring to update management, performance optimisation, security oversight, enhancements, and structured training to drive adoption.
If you’re experiencing any of the challenges above, get in touch with Walkerscott. We’re a certified Microsoft partner and Dynamics 365 specialist across Australia, New Zealand, and South East Asia.