Every action in Microsoft Dynamics 365 results in a call made to the organization's web service. The message contains business entity information and core operation information. These messages are passed through a standard execution pipeline or stages where it can be modified by any custom logic written by users. This custom logic is a plugin.
Event execution pipeline
Pipeline stages
The event pipeline is divided into multiple stages, out of which four are available to register custom-developed or third-party plugins.
The four stages in the plugin execution pipeline in which we can register custom code are as follows:
| Event | Stage name | Stage number | Description |
| Pre-event | Pre-validation | 10 | The plugins registered in... |
