The plugin allows you to create unlimited custom fields that are required when a client is making the purchase of the appointment.
You have to click on the Fields Tab, then click on the “Add new field” button.
![](http://doc.bookingultrapro.com/wp-content/uploads/2021/12/create-custom-field-e1640593733815-1024x460.png)
You will have to set the Type, Input type, Custom Meta Key and label.
PLEASE NOTE: THE META KEY MUST TO BE UNIQUE AND IT CAN’T CONTAIN BLANK SPACES. IT HAS TO BE FOR EXAMPLE: “mycustometakey”, please note, there are no spaces, this is very important.