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Enhancing Dynamics 365 Capabilities: A Simple and Comprehensive Guide to Plugin Writing

Enhancing Dynamics 365 Capabilities: A Simple and Comprehensive Guide to Plugin Writing

Title: A Comprehensive Guide to Writing a Simple Dynamics 365 Plugin


Dynamics 365, Microsoft’s unified customer relationship management (CRM) and enterprise resource planning (ERP) platform, is widely recognised for its adaptability. Businesses use it to manage customer relationships, track engagement, and improve operations. To customise functionality, companies often utilise plugins. This blog post aims to provide a beginner-friendly guide to writing a simple Dynamics 365 plugin, making your CRM more adaptable to your business requirements.

Getting Started: What is a Dynamics 365 Plugin?

In Dynamics 365, plugins are custom-written code that modifies the system’s behaviour. They play an integral role in adapting Dynamics 365 to accommodate unique business processes. Plugins can add, alter, hide or combine features in the system, offering a plethora of creative possibilities.

Writing a Simple Dynamics 365 Plugin

Before you start, make sure you have Visual Studio and Plugin Registration Tool, crucial for developing and deploying your plugin into Dynamics 365.

Step 1: Setting Up

Firstly, create a new project in Visual Studio by going to File > New > Project. Then select ‘Class Library (.NET Framework)’ and give your project a name. Remember, consistency in naming conventions is essential for easier identification of plugins in the system later on.

Step 2: Adding References

Add necessary references essential for creating the plugin. These include Microsoft.Xrm.Sdk and Microsoft.Crm.Sdk.Proxy. To do this, navigate to Project > Add Reference > Assemblies > Extensions, then search for the required references.

Step 3: Building the Plugin Structure

Next, you’ll need to build your plugin structure. Start by removing any existing ‘using’ statements and replacing them with:

using System;
using Microsoft.Xrm.Sdk;

Then, make your class public and implement the IPlugin interface provided by Microsoft Dynamics 365 SDK.

Step 4: Writing Your Plugin Code

The first aspect of the plugin to focus on is the ‘Execute’ method. This is the entry point for your code when the event that triggers your plugin occurs in Dynamics 365.

Inside the ‘Execute’ method, create a context by obtaining it from the service provider. The context contains all the information about the event that caused the plugin to be triggered.

Next, instantiate the ‘IOrganizationService’ interface provided by SDK, which enables interaction with CRM data.

From here, you can write your custom logic that will execute when your plugin is triggered. Try starting with a simple operation, such as creating a new record or updating an existing one.

Step 5: Registering and Deploying Your Plugin

After writing the plugin, it’s time to register and deploy it into Dynamics 365 using the Plugin Registration Tool. Connect the tool with your Dynamics 365 instance, and then follow the steps to register a new assembly.

Once registered, you’ll define the event upon which your plugin will trigger. Here you can specify the entity, event (like create, update, delete), and whether the plugin should execute before or after the event.


Writing a simple Dynamics 365 plugin requires a good grasp of C# and the .NET framework, but once these skills are under your belt, a world of customisation opens up. Plugins can extend the capabilities of Dynamics 365, allowing it to suit just about any need your business may have. A word of advice, ensure your plugins are written and deployed correctly, as improper implementation can lead to performance issues and system errors. Happy coding!

Keywords: Dynamics 365, CRM, ERP, Microsoft, plugin, code, Visual Studio, Plugin Registration Tool, IPlugin, IOrganizationService, system behaviour, customer relationship management.

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