SAP Message C1125 - Multiple-values indicator refers to a reference characteristic

Diagnosis
Characteristic &v1& refers to field &v2& in table &v3&. Usually, such afield contains exactly one value. This contradicts themultiple-values indicator.
Object characteristics that refer to the structure SDCOM and are neededin variant configuration for pricingare an exception. Characteristics that refer to this structure musthave multiple values.

Procedure
Check whether you really need this indicator.