How To Fix FKKBIX428 - The configuration is not allowed to be changed (ZDM upgrade running)

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 428

• Message text: The configuration is not allowed to be changed (ZDM upgrade running)

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 FKKBIX428 - The configuration is not allowed to be changed (ZDM upgrade running) ?

  The SAP error message FKKBIX428 indicates that a configuration change is not allowed because a Zero Downtime Maintenance (ZDM) upgrade is currently in progress. This is a protective measure to ensure that the system remains stable and consistent during the upgrade process.
  Cause:
  The error occurs when an attempt is made to change configuration settings in the SAP system while a ZDM upgrade is running. ZDM upgrades are designed to minimize downtime by allowing certain operations to continue while the upgrade is being applied. However, to maintain data integrity and system stability, certain configurations cannot be modified during this time.
  Solution:
  
  
  Wait for the Upgrade to Complete: The simplest solution is to wait until the ZDM upgrade process is fully completed. Once the upgrade is finished, you should be able to make the necessary configuration changes without encountering this error.
  
  
  Check Upgrade Status: You can monitor the status of the ZDM upgrade through the SAP system logs or the transaction codes related to the upgrade process (e.g., SPAM, SAINT, or specific ZDM monitoring transactions). This will help you determine when the upgrade is expected to finish.
  
  
  Post-Upgrade Activities: After the upgrade is complete, ensure that you follow any post-upgrade activities that may be required, such as running specific reports or transactions to finalize the upgrade process.
  
  
  Consult Documentation: Refer to the official SAP documentation regarding ZDM upgrades for any specific instructions or best practices that may apply to your situation.
  
  
  Contact SAP Support: If you believe that the upgrade has been completed but you are still encountering this error, it may be beneficial to contact SAP support for assistance. They can help diagnose any underlying issues that may be causing the error to persist.
  
  
  Related Information:
  
  Zero Downtime Maintenance (ZDM): This is a methodology used in SAP to perform upgrades and maintenance activities with minimal disruption to business operations. It allows for certain processes to continue running while the upgrade is applied.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions related to this error message. SAP Notes often contain important information about known issues and their resolutions.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the state of the system during the upgrade.
  
  By following these steps, you should be able to resolve the FKKBIX428 error and proceed with your configuration changes once the ZDM upgrade is complete.