How To Fix WS_TOOL235 - Service definition &1 must no be changed (ZDM Upgrade running)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 235

• Message text: Service definition &1 must no be changed (ZDM Upgrade running)

Self-Explanatory Message

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• What is the cause and solution for SAP error message WS_TOOL235 - Service definition &1 must no be changed (ZDM Upgrade running) ?

  The SAP error message:
  WS_TOOL235 Service definition &1 must not be changed (ZDM Upgrade running)
  Cause:
  This error occurs because a ZDM (Zero Downtime Maintenance) upgrade is currently running in the system. During a ZDM upgrade, certain service definitions are locked to prevent changes that could interfere with the upgrade process. The system detects an attempt to modify a service definition (indicated by &1, which is the service name) that is currently protected due to the ongoing upgrade.
  Explanation:
  
  ZDM Upgrade is a process used to upgrade SAP systems with minimal downtime.
  During this process, SAP locks certain objects, including service definitions, to maintain system stability and consistency.
  Any attempt to change these locked service definitions results in the WS_TOOL235 error.
  
  Solution:
  
  
  Wait for the ZDM upgrade to complete:
  
  The simplest and safest approach is to wait until the upgrade process finishes. After completion, the locks on the service definitions will be released, and changes can be made.
  
  
  Check the status of the ZDM upgrade:  
  
  Use transaction /nZDM or the relevant ZDM monitoring tools to check the progress and status of the upgrade.
  Confirm that no upgrade steps are currently running or pending.
  
  
  
  Avoid making changes during the upgrade:  
  
  Postpone any changes to service definitions until the upgrade is fully completed.
  Coordinate with the upgrade team to schedule changes after the upgrade window.
  
  
  
  If the upgrade is stuck or failed:  
  
  Investigate the upgrade logs and resolve any issues.
  Contact SAP support if necessary to get assistance with stuck ZDM upgrade processes.
  
  
  
  Related Information:
  
  ZDM (Zero Downtime Maintenance): A SAP toolset and methodology to perform system upgrades with minimal or no downtime.
  Service Definitions: These are configurations related to services in SAP Gateway or other service-oriented components.
  Locking Mechanism: SAP locks certain objects during critical operations like upgrades to prevent inconsistencies.
  
  Summary:
  
  Error WS_TOOL235 means you cannot change the service definition because a ZDM upgrade is running.
  Action: Wait for the upgrade to finish before making changes.
  Check upgrade status using ZDM tools.
  Do not attempt to bypass locks as it may cause system inconsistencies.
  
  
  If you need further help, please provide details about the service definition you are trying to change and the current status of the ZDM upgrade.