What is the firmed CP Qty field?

The firming qty field was added to capture information from pre-fixture negotiations, when a cargo's voyage is scheduled, the CP Qty will be recorded as the Firming Qty. 

The firmed CP Qty field is read-only. The value in the CP Qty field on a Cargo/VC-in is captured and stored when the voyage to which the Cargo/VC-in is attached is set to the status “Scheduled."