SAP Message UCM0064 - Cannot determine the value of char. &1 (which determines the breakdown)

Diagnosis
The value of the characteristic &V1& is used to determine the breakdownproperties of an item.
This value cannot, however, be determined because the characteristicV1 is neither in the underlying data structure (v2) nor has it gota globally specified value.

System Response
If this message is issued as an error message, processing is stopped.
Otherwise, data that has the above mentioned structure is excluded fromprocessing.