How To Fix /UI2/IMPL_NAV_TREE000 - NWBC Runtime-Error in retrieving naviagtion-tree.

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/IMPL_NAV_TREE -

• Message number: 000

• Message text: NWBC Runtime-Error in retrieving naviagtion-tree.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/IMPL_NAV_TREE000 - NWBC Runtime-Error in retrieving naviagtion-tree. ?

  The SAP error message /UI2/IMPL_NAV_TREE000 NWBC Runtime-Error in retrieving navigation-tree typically occurs in the context of the SAP NetWeaver Business Client (NWBC) when there is an issue with retrieving the navigation tree structure. This can be due to various reasons, including configuration issues, authorization problems, or data inconsistencies.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to access the navigation tree or specific nodes within it.
  Configuration Problems: There may be issues with the configuration of the navigation tree in the backend system.
  Data Inconsistencies: The underlying data that populates the navigation tree may be inconsistent or corrupted.
  System Performance: If the system is under heavy load, it may fail to retrieve the navigation tree in a timely manner.
  Network Issues: Connectivity problems between the client and the server can also lead to this error.
  
  Solutions:
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary roles and authorizations to access the navigation tree. You can use transaction SU53 to analyze authorization failures.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the navigation tree in the SAP system. This may involve reviewing the settings in transaction PFCG (Role Maintenance) or NWBC configuration settings.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the relevant data. This may involve checking the backend tables that store navigation data.
  
  
  
  System Performance:
  
  Monitor system performance and check for any bottlenecks. You can use transaction ST22 to check for dumps or SM21 for system logs.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues affecting the connection between the NWBC client and the SAP server. Check for any firewall or proxy settings that might be interfering.
  
  
  
  Clear Cache:
  
  Sometimes, clearing the cache of the NWBC client can resolve issues related to stale data. You can do this by navigating to the settings in NWBC and clearing the cache.
  
  
  
  Update NWBC:
  
  Ensure that you are using the latest version of NWBC, as updates may contain bug fixes and improvements related to navigation tree retrieval.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to NWBC and navigation tree issues. You can search for specific notes using the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for NWBC and navigation tree configuration for any additional insights.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.