How To Fix ANST023 - System parameter &1 changed to &2 in system &3, instance &4

SAP Error Message - Details

• Message type: E = Error

• Message class: ANST - ANST Message Class

• Message number: 023

• Message text: System parameter &1 changed to &2 in system &3, instance &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ANST023 - System parameter &1 changed to &2 in system &3, instance &4 ?

  The SAP error message ANST023 indicates that a system parameter has been changed in the SAP system. This message typically arises in the context of system monitoring or performance analysis, particularly when using the SAP EarlyWatch Alert or similar tools.
  Cause:
  The error message ANST023 is triggered when a specific system parameter (denoted as &1) has been modified to a new value (&2) in a particular system (&3) and instance (&4). This change can occur due to various reasons, such as:
  
  Manual Configuration Changes: An administrator may have manually changed the parameter settings in the SAP system.
  System Upgrades or Patches: During system upgrades or the application of patches, certain parameters may be adjusted automatically.
  Performance Tuning: Adjustments made for performance tuning based on system monitoring results.
  Transport Requests: Changes made through transport requests that include configuration changes.
  
  Solution:
  To address the ANST023 message, consider the following steps:
  
  
  Review the Change: Check the specific parameter that was changed and understand its implications. You can do this by accessing the SAP system parameters via transaction RZ10 or RZ11.
  
  
  Consult Documentation: Look up the documentation for the specific parameter to understand its purpose and the impact of the change.
  
  
  Revert Changes if Necessary: If the change is not desired or is causing issues, you may revert the parameter to its previous value. This can be done through the same transactions mentioned above.
  
  
  Monitor System Performance: After any changes, monitor the system performance to ensure that the new parameter settings are functioning as expected.
  
  
  Communicate with Team: If the change was made by another team member, communicate with them to understand the rationale behind the change.
  
  
  Document Changes: Ensure that any changes made to system parameters are documented for future reference.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RZ10: To maintain profile parameters.
  RZ11: To display and change instance parameters.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or recommendations related to the specific parameter that was changed.
  
  
  System Monitoring Tools: Utilize tools like SAP Solution Manager or EarlyWatch Alert to keep track of system performance and parameter changes.
  
  
  Parameter Documentation: SAP provides extensive documentation on system parameters, which can be accessed through the SAP Help Portal.
  
  
  By following these steps, you can effectively manage and respond to the ANST023 error message in your SAP environment.