IC Shipment Quantity Issue

An IC shipment was created where the operator accidently removed 51,138,686,093 units from stock. The Shipment appears to have posted but when trying to open the shipment we get a Code: 3.3550.0 Source: IC0630 error. 

Can I go into the ICSHED table end edit the qty? I'm worried this transaction will cause day end to fail.