When you run a training class, do you use your own materials and provide your own certificates? Usually not. In most cases, you are certified by one of many companies with a strong well-known brand. Scrum.org, Lean Kanban University, LeSS, Training from the Back of the Room… you name it.
These companies – we call them certificate & license providers – help you to promote your courses and get more attendees. For that you need to add a class to their website, and copy it to your website. And update on both websites if something changes. Not with Workshop Butler.