Thanks Omer, all is activated well: "Group and multi-person chats" -> is set to: "Allow account to join groups and multi-person chats" and also the option "Allow media and files in chat" -> is set to: "Allow".
I never changed there anything. Whatever, I solved this issue by adding images instead of text based messages. I use now "Rich messages" and "Card-based messages". Which has the added benefit that my messages are now much nicer.
I'm sure the system is the problem but none from the Devs will handle that request. Thats really sad.
@ksyt how is the problem solved? Ijust showed him the way to find the option. But this doesnt solve the problem.
I tried everything, and have still same problem. Even if I change it to group and multipeople chat.
@Joshivince of course, you just go to your official account manager (manager.line.biz) then click on your account, click right top "settings". On "Accounts Settings" you can find down the topic "Toogle features". There you can choose "Group and multi-person chats".
Nice that you found the option Omer, but can you please say me where to find it?
Hi, does anyone have a solution for this problem yet?
@ksyt I have same problem like Joshivince, but I also enabled "allow bot join groups". I also disabled it and tried it out, and enabled it again, but no change.
Problem still exist
Do you enable
Allow bot to join group chats feature in developer console? My bot works as usual when I tested.
have exactly same problem, since 3-4 weeks now, cant find any solution.