Make changes to activity slip information in the Prepare Invoice window before opening the Sales window

You should make any changes you wish to activity slips before you click the Prepare Invoice button in the Work In Progress view of the Prepare Time Billing window.

If you make changes to or delete a line item of activity slip information after it has been added to a sale, those changes or deletions won't be reflected in the original activity slip. Because of this, time billing reports based upon activity slip records may be inaccurate.