We will learn the basic difference between synchronous and asynchronous plugins in Microsoft Dynamics CRM. Before we start, go through the below links to understand core concepts of plugins.
- What is a plugin?
- Event execution pipeline in plugin
- Developing & registering a plugin
- Reading & writing in fields using a plugin
- Retrieving records using a plugin
- Understanding images in plugin
Synchronous Vs Asynchronous plugins
| Synchronous Plugins | Asynchronous Plugins |
| Synchronous plugins are executed by the CRM Core System. | Asynchronous plugins are executed by asynchronous service. |
| Synchronous execution means that triggering event will wait until the plugins finishes the execution. | Asynchronous plug-ins allow triggering event to finish before plugins code runs. |
| Can only run for 2 minutes. | Can only run for 2 minutes. |
| Block user until completed. | Doesn’t block user from seeing the result of operation. |
| Can modify data before Dynamics 365 persists. | Modifications happened after operation so update call is required. |
| It has minimal overhead to manage call. | It has extra overhead to track queued background operation |
| Can run post operation and pre-operation | Can run post-operation and pre-operation |
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