How To Fix ESH_OM_OBJ_MODEL_RP2515 - Key field &4 cannot have semantics "Language Code"

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 515

• Message text: Key field &4 cannot have semantics "Language Code"

What causes this issue?

A node key field with semantics "Language Code" cannot be used in the
field mapping of an association or a composition if the node where the
field belongs to has at least one field that is flagged to "Contain
text".
Node key field &v4& is used in the field mapping of association ID &v1&
and node &v3& of object type &v2& has a field that is flagged to
"Contain text".

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_RP2515 - Key field &4 cannot have semantics "Language Code" ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2515, which states "Key field &4 cannot have semantics 'Language Code'," typically occurs in the context of the SAP Enterprise Search or SAP HANA environments. This error indicates that there is an issue with the configuration of a key field in a data model, specifically that a field designated as a key cannot be assigned the semantics of a language code.
  
  Cause:
  
  Incorrect Field Configuration: The field in question is likely configured as a key field in a data model but is also being assigned semantics that are not appropriate for a key field. Language codes are typically used for descriptive purposes and are not suitable as key identifiers.
  Data Model Definition Issues: There may be a misconfiguration in the data model definition where a language code field is incorrectly marked as a key field.
  Incompatibility with Search Framework: The search framework may not support language codes as key fields,