I have read a very good article for how to hook into the content events at http://jondjones.com/learn-episerver-cms/episerver-developers-guide/episerver-event-handling/how-to-hook-into-the-episerver-cms-events-pipeline
What I was hoping is that I can do the same thing but for admin -> Edit User -> Save button click. However, I can't seem to find a suitable event.
I've also seen that it might be possible to do this by creating a class with the GuiPlugIn attribute but if so it would be useful to see a snippet of how to use that.
are you using default asp.net membership provider or new asp.net identity?
This blog post might also be useful (if you are in Episerver version 10): https://www.dcaric.com/blog/how-to-intercept-the-user-provider-in-episerver-10
My code doesn't work with the latest version of Epi.
Episerver has implemented some breaking changes since last time I wrote that blog post.
I'll update the blog post if I find an easy way to intercept UIUserProvider.