You can add one extra field (additional question) to the booking form, which customers fill when they are booking a service. You can use this space to ask clients for all kinds of necessary information. For example, if they have a loyalty pass and its number. However, this field is not mandatory, so clients can successfully complete their bookings without filling it out.

Open the Settings tab — Inventory — Services and select the service for which you want to add the question. At the end of the form, there is a box where you can write an additional question. You will see this box even when you are creating a completely new service.

TIP: Do you want to learn more about adding a new service? Click here.