You can customize the fields for each time or billing charge in Features > Billing & Time > Fields.

You can also edit settings for the default comment field; for example, if you want to make leaving a comment compulsory.

Adding custom billing fields works in the same way as Ticket Fields, except that:

• Billing fields are never visible to Users.

• The Display and Hidden field types are not available for billing.

The same custom fields are used for both monetary billing and time log entries.

The Can modify billing and time log records enables an Agent to edit the values of custom billing fields, as well as the charges.