How To Fix ESH_OM_OBJ_MODEL_REP658 - Virtual model must only have a root node

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 658

• Message text: Virtual model must only have a root node

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_REP658 - Virtual model must only have a root node ?

  The SAP error message ESH_OM_OBJ_MODEL_REP658 indicates that there is an issue with the structure of a virtual model in the SAP Enterprise Search (SAP ESH) framework. Specifically, it states that a virtual model must only have a root node, which means that the model is incorrectly configured with multiple root nodes or lacks a proper hierarchy.
  Cause:
  
  Multiple Root Nodes: The virtual model is defined with more than one root node, which violates the requirement for a single entry point in the model.
  Incorrect Configuration: The model may not be properly configured in the backend, leading to a structure that does not conform to the expected hierarchy.
  Data Integrity Issues: There may be issues with the underlying data that the virtual model is based on, causing it to not reflect a valid structure.
  
  Solution:
  
  
  Check Model Configuration:
  
  Go to the configuration of the virtual model in the SAP ESH administration.
  Ensure that there is only one root node defined for the model. If there are multiple root nodes, consolidate them into a single root.
  
  
  
  Review Hierarchy:
  
  Verify the hierarchy of the nodes in the virtual model. Ensure that all nodes are properly linked and that there is a clear parent-child relationship leading to a single root.
  
  
  
  Adjust Data Sources:
  
  If the virtual model is based on multiple data sources, ensure that they are correctly integrated and that the data reflects a single hierarchy.
  
  
  
  Testing:
  
  After making changes, test the virtual model to ensure that it functions correctly and that the error message no longer appears.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for Enterprise Search and virtual models for specific guidelines on how to structure and configure models correctly.
  
  
  
  Seek Support:
  
  If the issue persists after checking the configuration and hierarchy, consider reaching out to SAP support or consulting with an SAP expert who can provide deeper insights into the specific model and its configuration.
  
  
  
  Related Information:
  
  SAP ESH Documentation: Review the official SAP documentation for Enterprise Search to understand the requirements for virtual models and best practices for configuration.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  System Logs: Check system logs for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the error message ESH_OM_OBJ_MODEL_REP658 and ensure that your virtual model is correctly configured.