I'm not sure how to go about accomplishing this. My scenario is this.
A user submits a request via a web form and that request sends notification to a group(easy), and creates an entry on a list in sharepoint(also easy).
Now, on that list in sharepoint there is a dropdown or checkbox doesn't matter which, that when it is checked or a certain value is selected then the process continues with another activity.
Ie. A customer makes a request for software, request is logged into a pending list, when the software arrives a dropdown is set to 'Received', the request returns to the originator so that they can request installation via a web form.. (rinse...repeat).
Maybe IPC event but I'm not sure how to set up the Sharepoint side.