Let us now see what does A.Cost means. A.Cost is known as Actual Cost in the shipment.

There will be many cost charges available in the shipment costing sheet.
All the charges will not be taken into account as cost. Only the charges which are Posted are considered as Actual charges.

Only those Posted cost charges will be available to preview in reports under A.Cost column. Refer below shipment charges, there are three cost charges available in the shipment and only two of them are posted.

Those two charges only will be available in the A.Cost column in the reports.