How To Fix ESH_OM_OBJ_MODEL_REP166 - Key of data type description is not fully specified

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 166

• Message text: Key of data type description is not fully specified

What causes this issue?

The key of a data type description consists of the fields <LS>Data Type
</>and <LS>Language</>. At least one of these fields is not specified.

System Response

The key is invalid.

How to fix this error?

Correct your entries accordingly.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_REP166 - Key of data type description is not fully specified ?

  The SAP error message ESH_OM_OBJ_MODEL_REP166 indicates that there is an issue with the specification of a key of data type description in the context of the Enterprise Search (ESH) or Object Model in SAP. This error typically arises when the system expects a fully specified key for an object, but the provided key is incomplete or missing certain required components.
  Cause:
  
  Incomplete Key Specification: The key for the object model is not fully specified, meaning that one or more required fields or attributes are missing.
  Configuration Issues: There may be issues in the configuration of the object model or the search model that lead to incomplete key definitions.
  Data Integrity Issues: The underlying data may be inconsistent or incomplete, leading to the inability to resolve the key properly.
  
  Solution:
  
  Check Key Specification: Review the key specification in the relevant configuration settings. Ensure that all required fields are properly defined and populated.
  Review Object Model Configuration: Go to the configuration of the object model in the SAP system and verify that all necessary attributes are correctly set up.
  Data Validation: Check the underlying data for completeness and integrity. Ensure that all necessary data entries are present and correctly formatted.
  Rebuild Index: If the issue persists, consider rebuilding the search index for the affected object model. This can sometimes resolve issues related to data inconsistencies.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of your SAP system for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to the error message ESH_OM_OBJ_MODEL_REP166. SAP frequently releases notes that address known issues and provide solutions.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect the object model and its definitions.
  Logs and Traces: Review application logs (transaction SLG1) or system traces to gather more context about when and why the error occurs.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.