I am trying to share a portal site with a few clients and allow them to use their own email address. (via office 365 plan E3 if that matters)
I went to the admin center -> site collections -> settings -> Manage external users
I selected Allow and clicked save.
Now in the client portal, site actions -> share site, it still says:
Invitations to users outside your organization are currently disabled.
Any idea what I'm missing?
Thanks in advance