I have 8 facebook accounts, all adding 300 friends per day, acceptance rate around 50%. So around 1,000 friends daily. I build myself a new group. Each of 8 accounts use a script which automate invite friends to join group. The friends automatically joined as new member of the group. So I have 1,000 group's member per day. Now after my group has 10,000 members, the invite function broken. So I try to invite manually, here's what happened. When I invite someone new to my group. The person will not automatically joined as a new member. The person will receive a notification said that I invite him to Join XYZ Group. The person could click on the nofitication and open up the group page. The person given a choice whether to "Decline", "Join Group" or "Mark as Spam". However when the person clicked on "Join Group" there's an alert coming out which said, "Person Cannot Be Invited. The person you are trying to invite has already been invited, is already a member, or has left the group." So the person cannot Join to my group through the invitation. If the person wants to join my group, he would have to "Decline" the invitation first, and then click on "Join Group" manually by himself. Not many people would know or want to do this, so my group now stuck and cannot invite any new members. The invite function in my group is broken. I tried creating new group and run the script on the new group, and it worked just fine, people automatically joined to the group. But for my Groups which has 10k members, it doesn't worked like that anymore. It feels like FB flagging and "punishing" my group. Did anyone facing similar situations? Anyone could help me get out from this trouble?