1. In your Bookeo account, click on Settings>Web site integration
2. From the Page location  scroll down menu, select the option embed a widget in my website
3. Copy the widget code shown in the Widget section at point #1 
4. Leave the browser window open and open a new tab in your browser
5. Login as admin to your BigCommerce account, and click on Storefront Content>Web Pages>Create a Web Page
6. In the page editor, click on the HTML button to edit the HTML content of the page
7. Paste the widget code (which you copied in step 2) in the HTML Source Editor
8. Click on the Update button of the HTML Source Editor. You will not see anything in the rich text editor. But don't worry!
9. Save the new page
10. Go back to the Bookeo window, and in the Web Site Integration settings paste the URL of the webpage where you put the widget  (the booking page on your website)
DONE! Now your BigCommerce site has a page for your Bookeo widget, too!
The integration with BigCommerce is only a website integration. Data, customers, and payments are not shared between Bookeo and BigCommerce. Customers will purchase and pay for articles in BigCommerce, and they will book and pay for appointments in Bookeo.