No characteristics combination was assigned for promotion &

What causes this issue?

A promotion is always for a characteristic, such as a product or a
resource.

How to fix this error?

You assign a promotion a chararcteristic in the shuffler and then a
value in the selector.


&FURTHER_SOURCES_OF_INF&
For more information on the shuffler and the selector, see the SAP
Bibliothek for <ZK>Demand Planning -> Creation of the Demand Forecast
-> Interactive Demand Planning Desktop</>.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.