Use add-ons to give services more specifications or as a way to upsell your services with additional services or products.

1. Create a new service or select a service which already exists
2. Under the service name, check off "Add-on"
3. Scroll down to Associated services to select the services to add the add-on under

To create products as an add-on, create it as a new service and set it to “0 minutes” for the duration. If clients book an appointment without the add-on and later decide to purchase the product, you can simply add it during checkout as an “extra charge”.