Hey @Lena54118!

Happy to help here - Most often when we see this its because the link that was shared is actually the ‘Event Editor’ link, which you would only have access to if you were logged in as your boss. Instead, you should be able to get around this by having your boss select ‘Share’ on their events page, then copying that link, like so:
 

This should get you the correct link so you can access the booking page.

Let me know if this works, or if you run into anything else!