Whether you're just starting your journey as a Dynamics 365 Developer or preparing for that big interview, everything begins with a clear understanding of what you're actually building on. That means understanding what Dynamics 365 CE is, and more importantly, how Dataverse holds it all together.
Let’s break it down.
💡 What is Dynamics 365 CE?
When we say Dynamics 365 Customer Engagement (CE), we’re talking about a collection of Microsoft business applications focused on managing customer-facing processes. Think about:
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💼 Sales – for tracking leads, opportunities, and closing deals
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🎧 Customer Service – for handling cases, SLAs, and knowledge management
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📣 Marketing – for managing campaigns, segments, customer journeys
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🧰 Field Service – for dispatching technicians and managing assets
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📊 Project Operations – for managing resource utilization and project billing
All of these apps don’t live in isolation. They run on a shared platform called Dataverse.
🧠 So, What Exactly Is Dataverse?
You can think of Dataverse as the "database with superpowers."
It's not just where data is stored — it's the backbone of all Power Platform applications and Dynamics 365 CE modules. It handles things like:
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Tables (Entities) – like
Contact
,Account
, orCase
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Relationships – one-to-many, many-to-many
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Security roles & access control
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Business logic – workflows, business rules, calculated fields
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APIs – for developers to read/write/update data
🔍 Fun Fact: Dataverse was formerly known as Common Data Service (CDS). Microsoft rebranded it, but many principles are the same.
🏗️ Dataverse = A Developer’s Playground
If you're a D365 developer, here’s what makes Dataverse special for you:
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You can customize tables, fields, and relationships without writing code.
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You can write plugins to run server-side logic during operations like create/update/delete.
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You can integrate external systems using the Web API or the SDK.
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You can build rich Power Automate flows or Power Apps that talk directly to Dataverse.
In other words, it gives you the flexibility of a relational database with the power of a business platform.
🔐 Security Model in Dataverse
Security isn’t an afterthought — it’s baked in.
Dataverse provides a layered security model:
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Business Units – Logical segregation of users (e.g., by department or geography)
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Security Roles – Define what actions a user can perform (Read, Write, Delete, etc.)
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Teams – Users can belong to multiple teams and inherit access
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Hierarchy Security – Managers can access records of their reports
🛡️ This model ensures that data access is well-governed — a crucial need for enterprise-grade apps.
💬 Real-World Analogy
Imagine you're building an app to manage real estate assets. Dataverse lets you:
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Create a A
Property
table with custom columns likeArea
,Price
,Location
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Link each property to an
Owner
(Account) -
Restrict certain users to only see properties in their city (via business units)
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Run a plugin to auto-calculate stamp duty based on the price
All of this happens inside Dataverse, without needing to build your own backend from scratch.
🎯 Interview Questions
Ans. Ownership gives control over a record; access (via sharing, role, or team) allows interaction without owning.
Ans. The solution installed last wins (layering). Managed conflicts are resolved via solution layering.
The top-most layer takes precedence.
Customer
can link to either Account or Contact).IOrganizationService
(SOAP), and Data Export (for external sync).- API limits (service protection throttling)
- Complex joins are harder than in SQL
- Plugin execution timeout (~2 minutes)
- Storage can become expensive at scale