You can add a button which will take user to his/her Facebook page but Facebook doesn't provide an option to add a share option through bot on their messenger platform.
Articles in this section
- How to set a custom greeting on Facebook Messenger?
- What are the limitations for the structured messages on FB messenger
- What is welcome message in Facebook and how do I set one?
- What is greeting message in Facebook and how do I set one?
- How to add a button to share something on the 'wall' of the user
- Is it possible to send a hyperlink in a Facebook bot?