SAP Message WRF_RPR_PROMHIER017 - Assigned promotion &1 is no longer "higher-level"

Diagnosis
The higher-level promotion &v1&, to which the current promotion isassigned, was changed to an operational promotion. However, it is notpossible to assign operational promotions to each other.

System Response
The system removes the assignment of the current promotion topromotion &v1&.