How To Fix /UI2/GLOBAL_CACHES021 - UI2 WebDynpro Catalog Cache: &1 entries in &2 invalidated

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/GLOBAL_CACHES -

• Message number: 021

• Message text: UI2 WebDynpro Catalog Cache: &1 entries in &2 invalidated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/GLOBAL_CACHES021 - UI2 WebDynpro Catalog Cache: &1 entries in &2 invalidated ?

  The SAP error message /UI2/GLOBAL_CACHES021 indicates that there are entries in the UI2 WebDynpro Catalog Cache that have been invalidated. This typically occurs when there are changes made to the UI components, such as modifications to the Web Dynpro applications, changes in the configuration, or updates to the underlying data models.
  Cause:
  
  Changes in UI Components: If there are updates or changes made to Web Dynpro applications, the cache may need to be invalidated to ensure that users see the most current version of the application.
  Transport Requests: When transport requests are imported into the system, it can lead to invalidation of cache entries.
  System Upgrades or Patches: Upgrading the system or applying patches can also lead to cache invalidation.
  Manual Cache Management: Administrators may manually invalidate the cache for maintenance or troubleshooting purposes.
  
  Solution:
  
  Clear the Cache: The most straightforward solution is to clear the cache. This can be done using transaction code /UI2/FLP or /UI2/FLP_CATALOG to access the Fiori Launchpad and clear the cache.
  Use Transaction Code: You can also use transaction code /IWFND/MAINT_SERVICE to manage and refresh the services, which may help in resolving cache-related issues.
  Check for Updates: Ensure that all relevant components are up to date and that any recent changes have been properly transported and activated.
  Monitor Changes: Keep track of changes made to the UI components and ensure that any necessary cache invalidation is performed after such changes.
  Restart the Application Server: In some cases, restarting the application server can help in refreshing the cache.
  
  Related Information:
  
  Cache Management: Understanding how cache management works in SAP Fiori and Web Dynpro applications can help in troubleshooting similar issues in the future.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or solutions for specific scenarios related to cache invalidation.
  Performance Considerations: Frequent cache invalidation can impact performance, so it’s important to manage changes carefully and only invalidate the cache when necessary.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or refer to SAP support for further assistance.