To navigate to the Consignment Invoice Report select Reports in the main menu followed by Consignment Invoice Report in the drop-down menu.

If Consignment Invoices are being used for either Superimposed Proof Of Delivery or Driver Scan Allocation with the QR Code Overlay for Invoices, the Consignment Invoice Report can be used to quickly check which Consignments do or don't have Invoices attached to them.

Select the date you want the report to run for, configure the other options such as displaying Future Dated Consignments and whether or not to show delivered consignments and click "Search".
The report will then show you which Consignments do or don't have Invoices uploaded, and you can click on the numbers to go immediately to those jobs.