Message type: E = Error
Message class:  AFWCH_FL - AFWCH: Filter Messages 
Message number: 038
Message text: Characteristic &1 is not unique without &2
You are trying to use characteristic <ZH>&V2&</><ZH>  </> that
is compounded with characteristic <ZH>&V1&</><ZH> </> for the filter
selections. As a result, the value specification is not unique. Check
whether this is intended.
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.
The SAP error message AFWCH_FL038 indicates that a characteristic is not unique without a specific context or additional characteristic. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) or SAP S/4HANA when working with characteristics in a planning scenario.
Cause: The error arises when you are trying to use a characteristic (denoted as &1) in a context where it needs to be uniquely identifiable, but it is not. The message suggests that the characteristic requires an additional characteristic (denoted as &2) to ensure uniqueness. This situation often occurs in the following scenarios: Multiple Values: The characteristic has multiple values that do not uniquely identify a specific object or planning entity. Hierarchical Structures: In cases where characteristics are part of a hierarchy, the system may require additional context to resolve ambiguities. Data Model Issues: There may be issues with the data model or configuration that lead to non-unique characteristics.
Solution: To resolve this error,
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