Microsoft Dynamics 365
Customisation & Development

X++ development, AL extensions, ISV solutions, code upgrades, and custom workflows — built upgrade-safe by a certified Dynamics development team.

Microsoft Certified X++ & AL Development ISV Solutions Code Upgrade Services
120+ Custom development engagements delivered
6+ Years of Dynamics development experience
25+ Certified Dynamics developers on the team
Overview

When standard Dynamics 365 functionality isn't enough - and it needs to be built right

Microsoft Dynamics 365 covers a great deal out of the box, but every business has processes that don't fit the standard model. The answer isn't to change the business to fit the software — it's to extend the software the right way, with development that survives updates and scales with your operation.

At DynamicUnit, our development practice covers X++ customisation for Finance & Operations, AL extension development for Business Central, and plugin and workflow assembly work for Dynamics CE. Everything is built using the supported extension model - not legacy overlayering — so customisations don't break when Microsoft releases updates.

Code reviews, automated testing, and Azure DevOps-managed deployments are standard, not optional extras. When customisations involve connecting Dynamics to external systems, our integration services team handles the middleware layer.

For reporting extensions, we also build Power BI-connected financial statements and operational dashboards that pull live data from your Dynamics environment.

Need to modernise legacy code before it blocks your next version upgrade? We handle code refactoring alongside upgrade projects. For ongoing development needs, our managed support packages include development hours for smaller customisation requests, and we work with your data migration team when customisations affect how data is structured or imported.

What's included

  • X++ module & report development
  • AL extension development for Business Central
  • Dataverse plugin & workflow assembly
  • ISV solution development & packaging
  • Code upgrade & legacy refactoring
  • Custom workflow & business rule design
  • Azure DevOps CI/CD for Dynamics deployments
Industries We Serve

Custom Dynamics development for your industry

Manufacturing

Custom production modules, quality control workflows, and shop floor reporting extensions for F&O manufacturing environments.

Distribution & Wholesale

Custom pricing engines, landed cost calculators, and warehouse document layouts for Business Central distribution setups.

Professional Services

Custom time-entry workflows, project billing extensions, and resource scheduling rules for consulting and engineering firms on F&O or BC.

Sales & Service Organisations

Custom Dynamics CE plugins, PCF controls, and model-driven app extensions for complex sales processes and SLA-driven service operations.

Our Capabilities

What our Dynamics development practice delivers

Across Finance & Operations, Business Central, and Dynamics CE - development that survives updates.

X++ Development

Custom modules, data entities, batch jobs, SSRS reports, and form extensions for Dynamics 365 Finance & Operations - built using the supported extension framework.

AL Extension Development

Upgrade-safe Business Central extensions covering page extensions, report extensions, codeunits, and API pages - fully compatible with Microsoft's cloud update cycle.

Dataverse Plugins & Workflows

Build C# plugins, workflow assemblies, and custom actions that extend Dynamics CE and model-driven apps - triggered on create, update, or delete of any Dataverse record.

ISV Solution Development

Design and package reusable ISV solutions for Dynamics 365 - with managed solution packaging, AppSource compliance, and version management across customer environments.

Code Upgrades & Refactoring

Migrate legacy C/AL Business Central code to AL, refactor old X++ overlayers to proper extensions, and bring undocumented customisations up to current standards.

Custom Reporting

Build SSRS reports, RDLC layouts, and Power BI-connected financial statements for F&O and BC - with parameterisation, drill-through, and document output formatting.

Azure DevOps for Dynamics

Set up CI/CD pipelines for X++ and AL builds, automated test execution, and environment-specific release pipelines - so deployments are controlled, repeatable, and auditable.

Code Review & Quality Assurance

Technical review of existing customisations, performance profiling, security analysis, and remediation recommendations - before those issues become production incidents.

Why DynamicUnit

What makes us the right development partner

Dynamics customisation done badly creates technical debt that compounds with every Microsoft update. We've seen the consequences - and we build every customisation using the methods that prevent them from becoming tomorrow's problem.

Extension Model Only

We never use overlayering or unsupported modification patterns. Every customisation is built as a supported extension - so Microsoft updates don't break your system.

Functional + Technical Expertise

Our developers understand the Dynamics 365 business processes - not just the code. That means customisations solve real problems, not just technical requirements on paper.

Microsoft-Certified Developers

Active certifications in F&O Finance, Supply Chain, and BC development - not just project management badges. Our developers write production X++ and AL every day.

Built for the Long Term

Code is written with readability, testability, and future maintainability in mind - so the next developer (including our own team) can work with it cleanly.

Structured, Documented Delivery

Technical design documents, code comments, deployment runbooks, and handover sessions - so you're not dependent on us to understand your own customisations.

Transparent, Fixed-Scope Pricing

We produce a technical design specification before pricing development work. You know what you're paying for and what will be delivered before any code is written.

How We Work

From kickoff to go-live in 4 phases

1
Requirements & Technical Design

We document the functional gap, analyse the standard Dynamics data model, and produce a technical design specification - including impacted entities, extension points, and testing criteria.

2
Development & Code Review

Code is written using Azure DevOps-managed branches, peer-reviewed, and unit-tested before merging. All development follows the supported extension model for F&O or BC.

3
UAT & Regression Testing

Your team validates the customisation in a test environment against real scenarios. We run regression testing to confirm nothing else has been affected.

4
Deployment & Handover

Production deployment via the CI/CD pipeline, deployment runbook, and technical documentation. For ongoing needs, we transition to managed support with development hours included.

FAQ

Common questions about Dynamics customisation

For Finance & Operations: X++ module extensions, data entities, batch jobs, custom SSRS reports, and workflow configurations. For Business Central: AL page, table, report, and codeunit extensions. For Dynamics CE: Dataverse plugins, workflow assemblies, custom actions, PCF controls, and model-driven form customisations. We also build ISV solutions that can be packaged and deployed across multiple customer environments.

No - provided customisations are built using the supported extension model, which is how we build everything. For F&O, this means using the extension framework rather than overlayering. For BC, this means AL extensions rather than C/AL modifications. For CE, this means registered plugins and solutions rather than direct entity schema changes. Each Microsoft update is tested against extensions before deployment.

Yes. Code upgrade and legacy refactoring is one of our core services. We commonly take over C/AL Business Central code and migrate it to AL, refactor F&O overlayer customisations to the extension model, and bring undocumented or poorly structured development up to standards that can be maintained and deployed reliably. We start with a code review and impact assessment before committing to scope.

We use Azure DevOps for source control, automated builds, and release pipelines across environments. For F&O, this uses the standard LCS deployable package pipeline. For BC, we use the AL build and deployment toolchain. For CE/Power Platform, we use the Power Platform Build Tools. Every deployment is version-controlled, logged, and reversible - no manual hotfixes pushed directly to production.

Yes. We design and build managed ISV solutions for Dynamics 365 CE and Business Central — with proper managed solution packaging, configuration data handling, and upgrade path planning. For organisations targeting AppSource, we guide the technical requirements for publisher verification, automated validation, and the listing process.

Development cost depends on the complexity of the customisation - a single report extension is very different from a multi-entity custom module. We produce a technical design specification that details the scope, and price development work on a fixed basis from that spec. Smaller customisations can be bundled under a managed support agreement with allocated development hours. You always know the price before code is written.

Ready to extend Dynamics 365 the right way?

Tell us what your current Dynamics system can't do - whether it's a reporting gap, a missing workflow, or a legacy customisation that breaks on every update. We'll give you an honest assessment.

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