How To Fix ESH_OM_OBJ_MODEL_REP428 - Back-end navigations: Node type ID &1, TUI &2, TNID &3

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 428

• Message text: Back-end navigations: Node type ID &1, TUI &2, TNID &3

What causes this issue?

Back-end navigations:
Node type ID: &v1&
Target UI type: &v2&
Target navigation ID: &v3&

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_REP428 - Back-end navigations: Node type ID &1, TUI &2, TNID &3 ?

  The SAP error message ESH_OM_OBJ_MODEL_REP428 typically relates to issues in the Enterprise Search (ES) component of SAP, particularly when dealing with back-end navigations in the Object Model. This error can occur when there are inconsistencies or misconfigurations in the navigation structure or when the system is unable to find the specified node type or TUI (Technical User Interface).
  Cause:
  
  Node Type ID Issues: The error indicates that there is a problem with the specified node type ID. This could be due to a missing or incorrectly configured node in the object model.
  TUI Issues: The Technical User Interface (TUI) might not be properly defined or linked to the node type, leading to navigation failures.
  Data Inconsistencies: There may be inconsistencies in the data or metadata that the Enterprise Search is trying to access.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain nodes or data.
  
  Solution:
  
  Check Node Configuration: Verify the configuration of the node type ID in the object model. Ensure that it is correctly defined and that all necessary attributes are set.
  Review TUI Settings: Check the TUI settings associated with the node type. Make sure that the TUI is correctly defined and linked to the appropriate node.
  Data Consistency Check: Perform a consistency check on the data and metadata used by the Enterprise Search. This may involve checking the underlying database tables or the configuration settings in the SAP system.
  Authorization Check: Ensure that the user encountering the error has the necessary authorizations to access the relevant nodes and data.
  Rebuild Index: If the issue persists, consider rebuilding the search index. This can help resolve issues related to outdated or corrupted index data.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error message.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Enterprise Search and Object Model configuration for detailed guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) for troubleshooting.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.