SAP Message RSDD013 - Change run is running or has been terminated. Activation not possible.

Diagnosis For reasons of consistency, it is not possible to activate hierarchiesduring a realignment run for attributes and hierarchies. Procedure Wait until the realignment run is completed. If the realignment run is terminated, remove the cause of thetermination and restart the realignment run. Only after the realignmentrun has been successfully completed is it then possible to activatehierarchies.