How To Fix CACHE_REACTIVATION016 - SQL error occurred for &3 &4: error code &1 &2; cache not activated

SAP Error Message - Details

• Message type: E = Error

• Message class: CACHE_REACTIVATION - Message class for CDS View Cache Reactivation

• Message number: 016

• Message text: SQL error occurred for &3 &4: error code &1 &2; cache not activated

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 CACHE_REACTIVATION016 - SQL error occurred for &3 &4: error code &1 &2; cache not activated ?

  The SAP error message CACHE_REACTIVATION016 indicates that there was an SQL error related to cache reactivation, specifically stating that the cache is not activated. This error typically occurs in the context of SAP's caching mechanisms, which are used to improve performance by storing frequently accessed data in memory.
  Cause:
  
  Cache Not Activated: The primary cause of this error is that the cache for the specified object (e.g., a table or view) is not activated. This can happen if the cache was manually deactivated or if there was an issue during the cache initialization process.
  Database Issues: There may be underlying database issues, such as connectivity problems, that prevent the cache from being activated.
  Configuration Issues: Incorrect configuration settings in the SAP system or the database can lead to cache activation failures.
  Data Consistency Issues: If there are inconsistencies in the data or if the data has been changed in a way that the cache cannot reflect, it may lead to this error.
  
  Solution:
  
  
  Activate the Cache: 
  
  Check the cache status for the specific object mentioned in the error message. You can do this using transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility).
  If the cache is not activated, you can manually activate it. This can often be done through the relevant transaction or by using the appropriate function module.
  
  
  
  Check Database Connectivity: 
  
  Ensure that the SAP system can connect to the database without issues. Check for any network problems or database service outages.
  
  
  
  Review Configuration Settings: 
  
  Verify the configuration settings related to caching in the SAP system. Ensure that they are set correctly according to the system requirements.
  
  
  
  Clear Cache: 
  
  In some cases, clearing the cache and allowing it to rebuild may resolve the issue. This can be done through transaction SM12 (to delete lock entries) or SM21 (to check system logs).
  
  
  
  Check for Updates/Patches: 
  
  Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known issues related to caching.
  
  
  
  Consult SAP Notes: 
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP Notes often provide detailed solutions or workarounds for known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE14, SM12, and SM21 for managing database objects and monitoring system logs.
  SAP Documentation: Review SAP documentation related to caching mechanisms and performance tuning for more insights.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.