Yes, that’s possible. With this, you can, for example, add new messages to a chat you have already uploaded or add a part which is missing due to changing your phone or phone number. You can even combine WhatsApp, Facebook Messenger, Instagram, iMessage, Threema or Telegram chats in one book with this option 
All you have to do is to upload the chats separately to zapptales and then inform our support team via support@zapptales.com - before you place an order. The team will then start the merge directly via our software. 
Good to know: If the chats overlap, our software automatically sorts the messages in chronological order when they are merged.