Event fire and Workflow Attach to External List?

Question

What is the best way approach to attach workflow and Event Receiver on External List? How to store Directly External Data to SharePoint Custom List?List

Answer 1

As I know the external list has about 25 limitations, because the data is stored into external data base. In your case you faced with these limitations:

1. Workflows cannot be attached
2. You cannot attach event receiver

In this post you can read

A workaround seems to be to create the external content type in Visual Studio. That way you can add some code to the create method to do additional things.

but I have not find any examples. I found out that in SharePoint 2013 you can use app to solve this issue. See this post for more details.