How To Fix ESH_OM_OBJ_MODEL_REP890 - Hierarchy of response attribute groups contains a loop

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 890

• Message text: Hierarchy of response attribute groups contains a loop

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_REP890 - Hierarchy of response attribute groups contains a loop ?

  The SAP error message ESH_OM_OBJ_MODEL_REP890 indicates that there is a loop in the hierarchy of response attribute groups within the SAP Enterprise Search (SAP ESH) framework. This typically occurs when the configuration of the attribute groups is not set up correctly, leading to circular references.
  Cause:
  
  Circular References: The most common cause of this error is that the hierarchy of response attribute groups has been defined in such a way that it creates a loop. For example, if Attribute Group A references Attribute Group B, and Attribute Group B references Attribute Group A, this creates a circular dependency.
  Incorrect Configuration: Misconfiguration in the settings of the attribute groups or their relationships can lead to this issue.
  Data Model Changes: Changes in the underlying data model or the way attribute groups are defined can also introduce loops if not managed properly.
  
  Solution:
  
  
  Review Attribute Group Configuration: Check the configuration of the response attribute groups in the SAP ESH settings. Look for any circular references and correct them.
  
  Navigate to the relevant configuration area in the SAP system (usually under the ESH settings).
  Inspect the hierarchy of attribute groups and ensure that there are no loops.
  
  
  
  Modify Relationships: If you find any circular references, modify the relationships between the attribute groups to eliminate the loop. This may involve:
  
  Removing or changing the references that create the loop.
  Reorganizing the hierarchy to ensure a clear, linear structure without circular dependencies.
  
  
  
  Testing: After making changes, test the configuration to ensure that the error no longer occurs. You can do this by executing the search functionality that utilizes the attribute groups.
  
  
  Documentation and Best Practices: Refer to SAP documentation for best practices on configuring response attribute groups and avoiding circular references. This can help prevent similar issues in the future.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same problem and can provide insights or solutions.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on configuring Enterprise Search and managing attribute groups.
  
  By following these steps, you should be able to resolve the ESH_OM_OBJ_MODEL_REP890 error and ensure that your attribute group hierarchy is correctly configured.