The first thing to do is to create an Employee. Employees are those who provide services to the customers (e.g. trainers, doctors, etc.). Each employee can provide an individually list of services, can have their own working schedule, and have other settings.
To add an employee, go to the 'bookings' sidebar and click on 'employees', then click on the “Add Employee” button in the top right of the screen
To add a service, go to the 'Booking' menu in your sidebar and open 'Services'.
A sidebar appears in which you can provide the service details. Mandatory parameters are the following: name, category, duration, employee, and price. If you wish, you can specify additional parameters (service picture and gallery, buffer time, capacity, etc.).