Our organization is large and has employee turnover, and often we need to transfer ArcGIS Online content from an employee who has left to somebody else. Also, with Enterprise accounts, we sometimes need to create a new account for someone due to email changes, and transfer over their existing content. When a web map is enabled for Collector and has Offline Map Areas created for it, admins are not able to transfer ownership of that web map (per ESRI documentation). They are also not able to view or manage those Offline Map Areas—including being able to delete them.
The only workaround we have found so far is to create a copy of the map and transfer ownership of that, but then the Offline Map Areas are lost, and the admin is not even able to recreate them for the new owner (though in many cases we wouldn't be able to regardless, since we are unable to see what those map areas even were to begin with).
Allowing admins to transfer web maps with Offline Map Areas would be ideal, but if that is impossible due to technical limitations, please consider allowing admins to at least manage the map areas of web maps they do not own (view/create/delete).
