Unit not stated

Either the scenario does not state its Unit, or rows carry a quantity or a rate per unit without saying what unit it is in. A blank is never read as the scenario's unit, so Create Scenario does not save the scenario, and a node that reads a scenario without its Unit stops.

What to do

Set Unit on the Create Scenario node, for example kg or pallet. For rows without a unit, pick a unit column in the table's Map node, or choose Same for every row and type the unit.

Where it comes from

Shown by Center of Gravity, Consolidate Shipments, Cost to Serve, Create Scenario, Network Optimization, XYZ Segmentation. It is one of the messages about the scenario.