How To Fix /UI2/SAP_NWBC031 - NWBC cache with &1 is invalidated.

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/SAP_NWBC -

• Message number: 031

• Message text: NWBC cache with &1 is invalidated.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/SAP_NWBC031 - NWBC cache with &1 is invalidated. ?

  The SAP error message /UI2/SAP_NWBC031 indicates that the cache for the SAP NetWeaver Business Client (NWBC) has been invalidated. This typically occurs when there are changes in the backend system that affect the UI or when the cache is manually invalidated.
  Cause:
  
  Changes in Backend: If there are updates or changes made to the backend system (like changes in roles, authorizations, or UI configurations), the NWBC cache may become invalid.
  Manual Cache Invalidation: The cache can also be invalidated manually by an administrator or through a system process.
  Version Mismatch: If there is a mismatch between the NWBC version and the backend system, it can lead to cache issues.
  Expired Cache: The cache may have a defined lifespan, and if it expires, it will be invalidated.
  
  Solution:
  
  Refresh the Cache: The simplest solution is to refresh the NWBC cache. This can usually be done by:
  
  Logging out and logging back into the NWBC.
  Using the "Clear Cache" option in the NWBC settings.
  
  
  Check Backend Changes: If there were recent changes in the backend, ensure that they are correctly configured and that the necessary roles and authorizations are assigned.
  Update NWBC: Ensure that you are using the latest version of NWBC that is compatible with your backend system.
  Rebuild Cache: If the issue persists, you may need to rebuild the cache. This can be done by:
  
  Navigating to the NWBC settings and selecting the option to rebuild the cache.
  
  
  Consult Logs: Check the NWBC and backend system logs for any additional error messages or warnings that could provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for NWBC to understand cache management and troubleshooting.
  Support: If the issue cannot be resolved, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to resolve the cache invalidation issue in NWBC.