How To Fix ESH_OM_OBJ_MODEL_RP2856 - The scale has no uom but attribute &1 is of dimension &2 with si-unit &3

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_RP2 - Object Model Repository (2)

• Message number: 856

• Message text: The scale has no uom but attribute &1 is of dimension &2 with si-unit &3

What causes this issue?

A ranking factor attribute can have a dimension and a scale can have a
unit of measure (uom) which itself has a dimension.
The attribute &v1& is assigned to the scale but the following condition
is not fulfilled:
As the scale has no unit of measure the attribute may not have dimension
&v3& which has a SI-unit of measure.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_RP2856 - The scale has no uom but attribute &1 is of dimension &2 with si-unit &3 ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2856 indicates that there is an issue with a scale in the system that lacks a unit of measure (UOM), while an attribute associated with it has a specific dimension and a corresponding SI unit. This error typically arises in the context of SAP's Enterprise Search or Object Model, where data attributes are expected to have defined units of measure for proper processing and representation.
  
  Cause:
  
  Missing Unit of Measure (UOM): The scale defined in the system does not have an associated unit of measure, which is necessary for interpreting the data correctly.
  Dimension Mismatch: The attribute in question has a defined dimension (e.g., length, weight, volume) but lacks a corresponding UOM, leading to confusion in data processing.
  
  Configuration Issues: There may be configuration issues in the data model or the way attributes are defined in the system.
  
  
  Solution:
  
  
  Define a Unit of Measure:
  
  Go to the relevant configuration settings in SAP and