Export your WhatsApp Chat from Android via email
To create your book, please export your WhatsApp Chat via email to email@example.com. It’s really easy:
Go to the chat you want to turn into a book, open the dropdown menu in the top right hand corner and select More.
Select Email Chat. Select Attach Media if you want to send your images as well.
Send the email including the generated .zip-file to firstname.lastname@example.org.