How To Fix GR102 - Higher-level characteristic & for characteristic & not defined uniquely

GR102 - Overview

• Message type: E = Error

• Message class: GR - Report Writer

• Message number: 102

• Message text: Higher-level characteristic & for characteristic & not defined uniquely

What causes this issue?

With hierarchically structured data, the values of the higher-level
characteristics must be known in order for lower-level characteristics
to be clearly specified. If the system does not offer these
higher-level characteristics to the user as possible entries, they must
be defined uniquely in the report group.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GR102 - Higher-level characteristic & for characteristic & not defined uniquely ?

  The SAP error message GR102 ("Higher-level characteristic & for characteristic & not defined uniquely") typically occurs in the context of SAP's classification system, particularly when dealing with characteristics and classes in the material master or when creating or changing classification data.
  
  Cause:
  This error indicates that there is a problem with the way characteristics are defined in relation to each other. Specifically, it means that the higher-level characteristic (the one that is supposed to define or categorize the lower-level characteristic) does not have a unique value for the lower-level characteristic. This can happen in the following scenarios:
  
  Non-unique Assignment: The higher-level characteristic is assigned multiple values for the same lower-level characteristic, leading to ambiguity.
  Missing Definition: The higher-level characteristic may not be defined properly in the classification system, or it may not be linked correctly to the lower-level characteristic.
  Incorrect Configuration: There may be an issue with the configuration of the classification system, such as