Follow these steps:
1. First, copy your Public URL link from Settings > Sharing & integrations
2. Now, open your Facebook business page
3. On the left-hand side, under 'About', select 'Edit details'
4. Scroll down to 'Websites' and click on the pencil icon to edit
5. Now, under ' Websites and social links' add your Public URL link
Clients can now book with you by clicking on your booking link in your Facebook profile. Remember to include your Public booking link in your social media posts to encourage clients to book online.