How To Fix SAI_CACHE850 - Cache not up to date, DirtyRead=yes; Trigger refresh and continue

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_CACHE - XI Configuration Cache

• Message number: 850

• Message text: Cache not up to date, DirtyRead=yes; Trigger refresh and continue

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 SAI_CACHE850 - Cache not up to date, DirtyRead=yes; Trigger refresh and continue ?

  The SAP error message SAI_CACHE850 indicates that the cache is not up to date, and it suggests that a refresh is needed to continue processing. This error typically occurs in the context of SAP applications that utilize caching mechanisms to improve performance by storing frequently accessed data in memory.
  Cause:
  
  Data Changes: The underlying data in the database has changed since the cache was last updated. This can happen due to transactions that modify the data.
  Cache Expiration: The cache may have a defined lifespan, and if it has expired, it will not reflect the most current data.
  Concurrency Issues: Multiple users or processes may be trying to access or modify the same data simultaneously, leading to inconsistencies in the cache.
  Configuration Issues: There may be misconfigurations in the caching settings or the application logic that leads to stale data being served.
  
  Solution:
  
  Trigger Cache Refresh: The error message suggests triggering a cache refresh. This can often be done through the application interface or by executing a specific transaction code that refreshes the cache.
  Check Data Consistency: Ensure that the data in the database is consistent and that there are no ongoing transactions that could be causing the cache to be out of sync.
  Review Configuration: Check the caching configuration settings in the SAP system to ensure they are set up correctly. This includes cache timeouts and refresh intervals.
  Monitor Concurrent Access: If multiple users or processes are accessing the same data, consider implementing locking mechanisms or other strategies to manage concurrent access.
  Consult Documentation: Refer to SAP documentation or support notes related to caching and the specific application you are using to find more tailored solutions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the SAI_CACHE850 error. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help in managing cache, such as SM12 (for lock entries), SM21 (for system logs), and ST22 (for dumps).
  Performance Monitoring: Use tools like SAP Solution Manager or transaction ST03N to monitor system performance and identify any bottlenecks related to caching.
  User Training: Ensure that users are trained on how to handle data changes and understand the implications of concurrent access on cache consistency.
  
  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.