Policy price absent

Some supply or demand policy rows have no price. Supply without a Unit Supply Cost would be treated as free, so the run stops. Demand without a Unit Revenue stops the run when Allow partial demand fulfillment is on, because serving it would look worthless; with that setting off it is a warning, and only the reported profit is affected.

What to do

Fill in Unit Supply Cost or Unit Revenue on the rows the message names, in the data Map Supply Policy or Map Demand Policy reads. Write 0 only for supply that really is free.

Where it comes from

Shown by Network Optimization. It is one of the messages about the scenario.