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A Beginner’s Guide to Writing a Simple Dynamics 365 Plugin for Extending Platform Functionality

A Beginner’s Guide to Writing a Simple Dynamics 365 Plugin for Extending Platform Functionality

Title: Writing a Simple Dynamics 365 Plugin: A Beginner’s Guide


In the realm of Dynamics 365 customization and development, plugins play a crucial role in extending the functionality of the platform. With their ability to modify and enhance system behavior, plugins provide the flexibility required to address unique business requirements. In this blog post, we will provide an overview of how to write a simple Dynamics 365 plugin, catering to beginners in the field.

Understanding Dynamics 365 Plugins

A Dynamics 365 plugin is a custom code component that integrates with the platform’s event execution pipeline. This pipeline triggers the plugin when certain events occur within the system, allowing developers to respond to these events with specific actions. Plugins can be written using C# or VB.NET and are executed synchronously or asynchronously.

Setting up the Development Environment

To begin writing a Dynamics 365 plugin, ensure that you have the necessary tools ready. These include Visual Studio, the Dynamics 365 SDK, and access to a Dynamics 365 organization where the plugin will be deployed. The SDK provides the required assemblies and tools for plugin development.

Creating the Plugin Solution

1. Launch Visual Studio and create a new class library project.
2. Add references to the required Dynamics 365 SDK assemblies.
3. Rename the default Class1.cs file to something more descriptive, such as “SimplePlugin.cs”.

Defining the Plugin Class

1. Open the SimplePlugin.cs file and define the necessary namespaces.
2. Declare a class that implements the IPlugin interface, which contains the Execute method.
3. Implement the Execute method, which will contain the plugin logic.

Registering the Plugin

1. Open the Dynamics 365 organization and navigate to Settings > Customizations > Customization > Plug-in Assemblies.
2. Click “New” to register a new plugin assembly.
3. Enter the necessary details, such as the assembly name, version, and location.
4. Attach the plugin assembly file generated by the Visual Studio build process.
5. Save and publish the assembly.

Creating the Plugin Step

1. In the Dynamics 365 organization, navigate to Settings > Customizations > Customize the System.
2. Expand “Entities” and select the desired entity for which the plugin should trigger.
3. Click on “Plug-in Steps” and create a new step.
4. Specify the necessary details, including the event message, mode, and stage.
5. Associate the plugin assembly and choose the appropriate class and method.
6. Save and publish the step.

Testing and Deploying the Plugin

1. Use the Dynamics 365 organization to test the plugin’s functionality against different scenarios.
2. Debug the plugin by attaching Visual Studio to the Dynamics 365 process.
3. Once satisfied with the testing, deploy the plugin by exporting the solution from the development environment and importing it into the target organization.


Writing a simple Dynamics 365 plugin can be an empowering experience for developers seeking to extend the capabilities of the platform. By understanding the basics of plugin development, registering the plugin assembly, creating relevant steps, and testing its functionality, you can enhance the functionalities of Dynamics 365 to meet unique business needs. With this guide, beginners can take their first steps towards becoming proficient Dynamics 365 plugin developers.

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