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Mastering Dynamics 365: A Comprehensive Guide to Creating Your First Plugin

Mastering Dynamics 365: A Comprehensive Guide to Creating Your First Plugin

Title: Creating a Simple Dynamics 365 Plugin: A Step-by-Step Guide


Dynamics 365, Microsoft’s powerful suite of CRM and ERP applications, is an integral part of many organisations’ digital infrastructure. While its out-of-the-box functionality is impressive, it also provides great scope for customisation, allowing you to create unique plugins that cater to your specific business objectives. This post will guide you through writing a simple Dynamics 365 plugin. By following these steps, even those with a basic understanding of coding and Dynamics can begin to unlock its full potential.

Why Write a Dynamics 365 Plugin?

Writing a plugin allows you to extend the functionality of your Dynamics 365 system. Plugins are vital for performing operations that are not possible through built-in processes, workflows, or actions. For example, integrating with third-party systems, executing complex validations and calculations, or enhancing the user interface are all achievable through plugins.

Step 1: Environment Setup

We’ll start with setting up the development environment. You’ll need Visual Studio (VS), a development platform for building applications for Windows, Web, and cloud. You’ll also need the Software Development Kit (SDK) for Dynamics 365 which contains the assemblies we’ll interact with when writing our plugin.

Step 2: Project Creation

Launch Visual Studio and select ‘Create new project’. Then choose ‘Class Library (.NET Framework)’ and click ‘Next’. Name your project and the solution and then click ‘Create’.

Step 3: Installing Required NuGet Packages

Now we need to install the necessary assemblies. Right-click on ‘References’ in your project and select ‘Manage NuGet Packages’. Search for ‘Microsoft.CrmSdk.CoreAssemblies’ and Install this package.

Step 4: Writing Your First Plugin

Create a new class in your project and have it inherit from the IPlugin interface. This is found in the namespace Microsoft.Xrm.Sdk. Your plugin class must implement the Execute method from the IPlugin interface. It is within this method that your custom logic will sit.

This plugin will execute every time a specific event, such as creating or updating a record, is triggered in Dynamics 365.

The following code snippet provides a basic structure for a plugin.

using System;
using Microsoft.Xrm.Sdk;

namespace MyFirstPlugin
public class MyPlugin: IPlugin
public void Execute(IServiceProvider serviceProvider)
// Obtain the execution context from the service provider.
IPluginExecutionContext context = (IPluginExecutionContext)

// The InputParameters collection contains all the data passed in the message request.
if (context.InputParameters.Contains(“Target”) &&
context.InputParameters[“Target”] is Entity)
// Obtain the target entity from the input parameters.
Entity entity = (Entity)context.InputParameters[“Target”];

// Write your custom business logic here…

Step 5: Testing Your Plugin

For testing, we’ll use the ‘Plugin Registration Tool’ provided by Microsoft. Once you’ve registered and signed in to the tool, you can register a new assembly. Upload the DLL file of your plugin project and then define the events that trigger it.


Writing your first Dynamics 365 plugin may seem daunting at first, but once you have your development environment set up and understand the basic structure, it becomes a more straightforward process. Remember, detailed planning and thorough testing are paramount to ensuring your plugin works correctly and enhances your overall Dynamics 365 solution.

With this simple guide, you’re now ready to begin tapping into the unlimited potential of Dynamics 365 through plugin development. Happy coding!

Keywords: Dynamics 365, plugin, Visual Studio, CRM, ERP, NuGet Packages, IPlugin interface, Plugin Registration Tool.

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