How To Fix SAI_CACHE818 - 'Partial' mode -> Deleting selected objects in cache

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_CACHE - XI Configuration Cache

• Message number: 818

• Message text: 'Partial' mode -> Deleting selected objects in cache

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAI_CACHE818 - 'Partial' mode -> Deleting selected objects in cache ?

  The SAP error message SAI_CACHE818 typically relates to issues with the SAP caching mechanism, particularly when it comes to the management of cache entries. The message indicates that there is a problem with the cache entries that are being processed in "Partial" mode, and it is attempting to delete selected objects from the cache.
  Cause:
  
  Cache Inconsistency: The cache may have become inconsistent due to changes in the underlying data or configuration that are not reflected in the cache.
  Data Changes: If there have been recent changes to the data model or the objects that the cache is supposed to hold, the cache may not be able to handle these changes properly.
  Configuration Issues: Incorrect configuration settings for caching in the SAP system can lead to this error.
  Memory Issues: Insufficient memory allocated for caching can also lead to problems, causing the system to attempt to delete entries to free up space.
  
  Solution:
  
  
  Clear Cache: You can manually clear the cache for the specific object or for the entire application. This can often resolve inconsistencies.
  
  Use transaction code SICF to access the Internet Communication Framework and clear the cache.
  Alternatively, you can use transaction SM12 to delete lock entries that may be causing issues.
  
  
  
  Check Configuration: Review the caching configuration settings in your SAP system to ensure they are set up correctly. This includes checking parameters related to cache size and object management.
  
  
  Monitor System Performance: Use transaction ST02 to monitor the buffer and cache performance. This can help identify if memory issues are contributing to the problem.
  
  
  Update Statistics: Sometimes, updating the statistics for the database tables involved can help resolve cache-related issues. Use transaction DB02 to check and update statistics.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates available that can resolve the issue.
  
  
  System Restart: In some cases, a system restart may be necessary to clear out any lingering issues with the cache.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on caching mechanisms and error handling.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it impacts production systems.
  
  By following these steps, you should be able to address the SAI_CACHE818 error and restore normal functionality to your SAP system.