I'm working on 2013.
I'm using 2010 workflows for sending emails to external users on item update.
But the items are created using Provider hosted App by the user name "SharePoint APP" and App is given full control permission.
- Tried calling 2010 workflow from 2013 workflow - not working
- Tried triggering the workflow through code but since we use third party authentication it is merely not possible and also includes lot of work and not a smooth solution.