As with the Service Desk SharePoint System, there are better platforms to have a Shopping Cart on which are free and Open Source, however again, the business required this be set up in SharePoint, which was a challenge. The below Shopping Cart was created using OOTB SharePoint foundation...
SharePoint may not be the best platform to create a Service Desk type system on it as there are free systems out there you can use without much set up (i.e. Spiceworks). However anything can be set up in SharePoint, you just have to put the effort in to make it work. My business requirement...
The workflow I have deployed/enabled globally is a SharePoint 2013 workflow. SharePoint 2013 workflows are hosted on the Workflow Manager platform. To add the workflow on all Libraries, we need to add a new workflow subscription to the workflow manager using the ID of our Workflow definition....
Use the below if needing to target each Web or List in a Site Collection