Approve or Reject Billing
Note: You can approve or reject
                billing items directly on the Billing tab of the
                engagement.
Note: You can also approve or reject all items for a billing line
                by not making a selection and click 
. 
Note: Rejected and resolved
                billing items can be viewed on the Rejected tab (. Resolved items are filtered out by default, but you can include them
                in the table view by selecting the Include Resolved Items
                check box above the table. The counter of items displayed changes when this filter
                is applied/removed.