If I may share a view on this subject, which I see has been kicking around for years…
In our system most of our members already have their SSO credentials in place through site cookies from our home site. So if a link to a message were emailed to a member of our group who has not yet entered the community, it would SSO just fine and let them in.
It looks like I can send a link to an email address which is almost as good, but in a perfect world I’d be able to do what @tobiaseigen suggests here and just send the invite without staging a user, at least when SSO is on.
Then it would be up to the SSO to handle the arrival of that user properly. I suppose it might be nice to have a configuration checkbox to disable this capability in case the SSO can’t handle it properly…
We have 3000 members but only about 600 have checked out the community in the first two weeks… it would be nice to invite people we are referencing.