This post was inspired by this question: http://world.episerver.com/forum/developer-forum/Episerver-Commerce/Thread-Container/2016/9/commerce-manager-contacts-events/
and is an excerpt from my book: https://leanpub.com/proepiservercommerce
You might notice the lacking of events in some parts of the system. We have events for catalog system, for order system, for prices and inventories changes, but that’s not enough. You might want to have events – or at least – the ability to know when something happens. For example, when a customer contact is changed, or edited, or deleted, it would be very nice to do some extra actions.
Sending emails, updating external systems, etc.
Such events are not available out-of-box, so we have to implement our own. How? We don’t have ICustomerContactService (or something similiar) interface where we can write our implementation to replace the default service (and even if there is, it would be a big task to do so). So there’s no “ordinary”, framework-way to do that. However, CustomerContact is built on Business Foundation system, and BF, at its core, is all above extensible and pluggable. We don’t have ICustomerContactService interface, but we have IPlugin
who can do the same, and even more. As we learned in previous chapter, CustomerContact is just another EntityObject and all operations are still done via BusinessManager.Execute(Request) – even we have some nice wrapper methods to make working with it easier. And when Execute(Request) is called, it also runs all registered IPlugin modules.