There are two types of custom field categories: Contact fields and Product fields

Custom Contacts Fields

The data in these fields is information about the guest or client themselves. This demographic information can come from booking engines, pixel tracking, wifi portals, etc.

You will be able to verify custom fields that you’re receiving from different sources from the drop-down menu located at the upper-right of the screen. 

Custom Contacts Fields example: 

Custom Product Fields

Information we receive about the reservation or purchase, from your booking engine or PMS.

Custom Products Fields example:

Note: Although you may have 10 or more custom fields, any given contact may only have a few of them. For example, a portion of your total audience may not have the field language filled out, in this case, to accurately communicate with this group, we can use fields such as “Country” to identify their language.