How to make it send a message when adding a bot to a VK conversation?

Question

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I am creating a bot for VKontakte conversations
. It is necessary that when a bot is added to a conversation, it sends a characteristic message (Hello everyone!)

Answer 1

1) When adding a bot, an array should come (Callback or Longpoll, no difference), a request for the type of a new message, you can find out about it ( object - action - type = chat_invite_user ).
2) After receiving such a request, send a message using the messages.send method .
Here in C#