Why does an error occur while working with the VK API when using the reply_to argument in the messages.send method?

Question

Python

It is necessary to reply to the previous message from the conversation on behalf of the bot, when using the reply_to argument, an error occurs:
vk_api.exceptions.ApiError: [100] One of the parameters specified was missing or invalid: cannot reply this message

but the message does not forward (does not attach)
I get the message Id from the "conversation_message_id" field,
here is the code of the message sending method itself:

def write_msg(session,user_id, message,replyId): #Write message to user
    rand=random.randint(-9223372036854775807,9223372036854775807)
    session.method('messages.send', {'peer_id': user_id,'random_id':rand ,'message': str(message),"reply_to":int(replyId)})

Answer 1

When using forward_messages, the bot does not give errors, but the message does not forward (does not attach)
I get the message Id from the "conversation_message_id" field

a message can be forwarded or answered, while these are different things
forward_messages - for forwarding, reply_to - for answering,
but the bot cannot do either, because communities in conversations do not save the history of correspondence, and all messages have id = 0
conversation_message_id is the id of the message within the conversation, for forwarding you need exactly the global id from the bot itself