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

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_NWBC - NWBC Messages

• Message number: 031

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

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 SAP_NWBC031 - NWBC cache with &1 is invalidated. ?

  The SAP error message "SAP_NWBC031 NWBC cache with &1 is invalidated" typically occurs in the context of the SAP NetWeaver Business Client (NWBC). This message indicates that the cache for a specific NWBC session or user has been invalidated, which can lead to issues with the display or functionality of the NWBC interface.
  Cause:
  
  
  Cache Invalidation: The cache may be invalidated due to various reasons, such as:
  
  Changes in the backend system (e.g., updates to roles, authorizations, or configuration).
  Manual cache clearing by an administrator or user.
  System upgrades or patches that affect the NWBC configuration.
  Changes in user settings or preferences.
  
  
  
  Session Timeout: If the user session has timed out, the cache may also be invalidated.
  
  
  Network Issues: Connectivity problems between the NWBC client and the SAP backend can lead to cache invalidation.
  
  
  Solution:
  
  
  Refresh the Cache: 
  
  Users can try to refresh the NWBC cache by logging out and logging back in. This action typically forces the NWBC to reload the necessary data from the backend.
  
  
  
  Clear Cache Manually:
  
  Users can manually clear the NWBC cache. This can usually be done through the NWBC settings or preferences menu. Look for options related to cache management.
  
  
  
  Check User Roles and Authorizations:
  
  Ensure that the user has the correct roles and authorizations assigned. If there have been changes to roles, reassign them as necessary.
  
  
  
  System Check:
  
  Verify if there are any ongoing system upgrades or maintenance activities that might affect NWBC functionality.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues affecting the connection between the NWBC client and the SAP backend.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or updates related to NWBC and the specific error message. There may be patches or updates that address known issues.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for NWBC for detailed information on cache management and troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Logs: Check the system logs (transaction SM21) for any related error messages that could provide more context on the issue.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.