Invoicing by Contract

We work with clients that we do more than one project for them. Managed Services plus other special projects.

When it comes to billing we might have multiple tickets per contract. We would like to be able to create one invoice per contract that includes all of the tickets that are billable under that contract without having to open each ticket to determine what contract the ticket was part of.

Even if the contract name would be listed in the billing module it would be a great help.