Who was the bright idiot at Microsoft who decided you shouldn't be able to start a 2013 workflow from a 2013 workflow? Who ever made this decision should be fired.
1 Answer
No Idea who decided it and in the end it doesn't even matter. But it is possible to start a 2013 Workflow from within a 2013 Workflow with the "Call HTTP web service" Action.
You can read how exactly it works here:
http://www.benprins.net/2016/12/30/sharepoint-2013-workflow-start-a-workflow-using-a-rest-call/
