There are two ways to mark an expense as not billable, and they are as follows:
To mark your own expense as not billable, head over to the Main Card, Expenses-view, under My Expenses section.
Click the 'Invoice'-icon, and you are done.
To mark an expense already included in a draft invoice as not billable, head over to the Main Card, Invoices-view, under the Drafts section, and click on the invoice to open it.
Click the Expenses section.
Click the 'Invoice'-icon.
Click the Save Changes button, and you are done.
1. Ensure that you are either a Case Manager, a Client Manager, a User with 'Assistant'-role, or a User with 'Accounting'-rights set up to be able to make changes to registered assets on a draft invoice for other Users.