D365 CRM / CE / Power Platform - Managed vs Unmanaged Solutions

In every D365 CE and Power Platform project, one question eventually sparks debate:

“Should we use managed or unmanaged solutions?”

It seems simple on the surface. After all:

• unmanaged solutions = easy to develop
• managed solutions = controlled for production

But in enterprise projects, this decision becomes a major risk factor—if approached casually.

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The Unmanaged Comfort Zone

Many teams start with unmanaged solutions everywhere.

Why? Because:

• Developers like the flexibility
• It’s easier to experiment
• No deployment headaches
• Instant changes in Dev/UAT

At first, it works beautifully.

Then you move to production.

And suddenly:

• edits happen directly in Prod
• deployments overwrite each other
• dependency errors appear
• hotfixes bypass pipelines
• rollback becomes nearly impossible

Unmanaged is comfortable—but invisible debt builds silently.

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The Managed Misconception

Teams think managed solutions are “too restrictive” for Dev.

They fear:

• losing flexibility
• slow iteration
• complex rollback

But here’s the truth:

• Managed solutions provide layered control
• They allow clean upgrades
• They prevent accidental changes in Prod
• They enable versioned releases

Enterprise systems are not about comfort. They are about predictable behavior at scale.

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The Most Common Enterprise Trap

The trap is mixing unmanaged and managed solutions incorrectly.

Typical scenario:

• Core entities and processes in managed solution
• Extensions and integrations in unmanaged solutions
• Hotfixes applied directly in Prod

The result:

• Dependency hell
• Upgrade failures
• Solution layering problems
• Lost governance

This happens because unmanaged and managed solutions behave differently in layering and ownership.

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Architect’s Recommended Strategy

A robust enterprise solution uses both but purposefully.

1. Development (Dev)

• Use unmanaged solutions
• Iterate freely
• Experiment without restrictions

2. UAT / Test

• Use managed solutions for stability
• Validate deployments
• Control versions

3. Production

• Only managed solutions
• Layered properly
• Hotfixes via managed patch solutions
• No direct edits in Prod

This creates:

• controlled deployments
• predictable upgrades
• rollback capability
• auditability

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Hot Tips for Managed Solutions

1. Patch vs Full Version: Use patch versions for minor updates; full version for major changes.
2. Layering Discipline: Never mix unmanaged extensions on top of managed core in Prod.
3. Documentation: Always document which solution owns which component.
4. Dependency Awareness: Know what flows, plugins, and tables are included in each solution.

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Lessons Learned

1. Unmanaged in production is a ticking time bomb

You may not notice problems initially—but upgrades will fail eventually.

2. Managed solutions require discipline, not fear

They make enterprise delivery predictable.

3. Mixing unmanaged and managed without rules destroys ALM

Layering rules are not optional—they are architecture.

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The Takeaway

Managed vs unmanaged is more than a technical choice.

It is a governance and architecture decision.

In enterprise D365 CE and Power Platform projects:

• Dev = unmanaged for agility
• Prod = managed for stability
• Layers, patches, and ownership = mandatory discipline

Ignoring this creates invisible debt that surfaces only during upgrades or cross-team deployments.

A good architect never asks:

“Should we use managed or unmanaged?”

They ask:

“How do we enforce solution discipline so the system survives 5 years of growth?”