When you answer and close a WhatsApp ticket and the customer replies to that whatsapp message, it automatically creates a new ticket. It would be very usefull to automatically merge that new message to the old (closed) ticket.
Thanks for sharing this suggestion! We will keep track of this post and keep you up to date as soon as there's any news!
I will close this topic, as it is merged here: https://talk.trengo.com/t/x140t0/show-facebook-private-messages-with-same-person-as-a-conversation