A container board helps planning only when each line identifies a unit and its latest event.

Fields for each line. Container or asset ID.

Current status and physical location.

Last update time and action owner.

Define status terms

Show ready and clean units in the available area.

Track return, washing, service and hold separately.

Block quarantined or damaged units from dispatch.

At shift start. Physically locate sample units from the board.

If status is wrong, check the latest event record.

Correct board and inventory records consistently.

Ownership and exceptions. Name an owner for each open return, wash or service action.

Move missing units or uncertain locations to an exception list.

At shift close. Outgoing and incoming owners review open items together.