Hi, talked to tech support about this and not getting anywhere. here's what I was trying to get through to the support:
"I have this app that’s open to everyone – anybody on the street can view and enter new data to it – that is EVERYONE, AND ANYONE. No login required.
But if our company users who logs into their arcgisonline account, they will get that error message when hitting the same link. the error says: "Configured group is invalid or no items have been shared with this group yet"
I do have a polygon layer to define the submission area and another polygon layer that shows on-going projects.
I really don't know a whole lot about the sharing at arcgisonline. hope someone can point me to the right direction. thanks