How To Fix ESH_OM_OBJ_MODEL_REP042 - Node &1/&2 is already listed

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 042

• Message text: Node &1/&2 is already listed

What causes this issue?

All relations and nodes needed to execute a request are listed. The node
is already listed.
Object type: &v1&
Node: &v2&

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?

Internal error: Inform SAP

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_REP042 - Node &1/&2 is already listed ?

  The SAP error message ESH_OM_OBJ_MODEL_REP042 indicates that there is an attempt to add a node to a model that is already present in the list. This typically occurs in the context of the SAP Enterprise Search or Object Model where nodes (which can represent various entities or objects) are being managed.
  Cause:
  The error is triggered when:
  
  You are trying to add a node (identified by parameters &1 and &2) to a model, but that node is already included in the model.
  There may be a duplicate entry in the configuration or data that is being processed.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Nodes: 
  
  Review the current configuration of the object model to see if the node you are trying to add already exists. You can do this by navigating to the relevant transaction or configuration area in SAP.
  
  
  
  Remove Duplicates:
  
  If you find that the node is indeed already present, you may need to remove the duplicate entry or adjust your configuration to avoid adding it again.
  
  
  
  Adjust Your Input:
  
  Ensure that the parameters you are using to add the node are correct and do not inadvertently reference an existing node.
  
  
  
  Review Custom Code:
  
  If you are using custom code or enhancements, check to see if there are any logic errors that might be causing the node to be added multiple times.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of the software you are using for any additional guidance or known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may have additional insights or patches available.
  
  
  
  Related Information:
  
  Transaction Codes: Depending on your SAP version, you may use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or specific transactions related to Enterprise Search configuration.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.