I am trying to move a workflow from a classic site to a modern group site.
I saved the old wf as a template. However, uploading the wsp to the site collection's (domainname.sharepoint.com) Solutions library does not work as I guess group sites (domainname.sharepoint.com/sites/mygroupsite) are not part of that site collection and therefore when I go to Site Settings> Manage Site Features, the workflow is not showing up so I can't activate it.
How do I enable this 2010 reusable workflow on the new group site? Thanks so much in advance!