How To Fix /SMB/FUNCTION_SWITCH029 - 'OCS in progress' was switched on

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/FUNCTION_SWITCH -

• Message number: 029

• Message text: 'OCS in progress' was switched on

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 /SMB/FUNCTION_SWITCH029 - 'OCS in progress' was switched on ?

  The SAP error message /SMB/FUNCTION_SWITCH029 'OCS in progress' was switched on typically indicates that the system is currently in a state where the OCS (Online Change System) is active. This can happen during certain operations, such as when a system upgrade or a change is being applied, and it prevents other operations from being executed until the OCS process is completed.
  Cause:
  
  OCS Activation: The OCS is a mechanism used in SAP to apply changes to the system without requiring a complete downtime. If this process is active, it means that the system is in the middle of applying changes.
  Concurrent Operations: If another operation is attempted while OCS is active, it can lead to this error message, as the system does not allow conflicting changes to be made simultaneously.
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait for the OCS process to complete. You can monitor the system logs or transaction SM37 (Job Monitoring) to check the status of the OCS job.
  Check for Active Jobs: Use transaction SM50 or SM66 to see if there are any active processes related to OCS. If you find any long-running jobs, you may need to investigate further.
  System Restart: In some cases, if the OCS process seems to be stuck, a system restart may be necessary. However, this should be done with caution and typically as a last resort, as it can lead to data inconsistencies.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error. There may be updates or fixes available that can resolve the issue.
  Contact SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific context of your system.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM37 (Job Monitoring), SM50 (Process Overview), and SM66 (Global Process Overview) to monitor and manage background jobs and processes.
  SAP Notes: Regularly check for SAP Notes related to OCS and system upgrades, as they can provide insights into known issues and their resolutions.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide context for the OCS process.
  
  By following these steps, you should be able to address the error message and understand the underlying cause related to the OCS process in your SAP system.