The Billing capabilities in Credenza Pro make it easy to send out invoices to each of your clients. With the handy Batch Bill utility you can further automate the process to create multiple invoices all at the same time. The smart utility lets you look across clients or files, and you can restrict the list to include only entries that have unbilled time or expenses prior to a particular date. This makes it easy to bill for the previous month without including any of your recent charges.