How To Fix ESH_ZERO_DOWNTIME012 - No instance of class '&1' was created

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_ZERO_DOWNTIME - Zero Downtime

• Message number: 012

• Message text: No instance of class '&1' was created

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_ZERO_DOWNTIME012 - No instance of class '&1' was created ?

  The SAP error message ESH_ZERO_DOWNTIME012 indicates that no instance of a specified class was created during a process that is expected to generate instances. This error is typically related to the Enterprise Search (ESH) functionality in SAP, particularly in the context of zero downtime maintenance or system upgrades.
  Cause:
  
  Configuration Issues: The class specified in the error message may not be properly configured or may not exist in the system.
  Data Issues: There may be no data available for the class, leading to the inability to create an instance.
  System State: The system may be in a state that prevents the creation of instances, such as during maintenance or upgrades.
  Authorization Issues: The user executing the process may not have the necessary authorizations to create instances of the specified class.
  Technical Errors: There could be underlying technical issues, such as missing components or incorrect settings in the system.
  
  Solution:
  
  Check Configuration: Verify that the class specified in the error message is correctly configured in the system. Ensure that all necessary settings are in place.
  Data Availability: Ensure that there is data available for the class. If the class is supposed to pull data from a source, check that the source is populated and accessible.
  System Status: If the system is undergoing maintenance or upgrades, wait until the process is complete and try again.
  Authorization Check: Ensure that the user has the necessary authorizations to create instances of the specified class. You may need to consult with your SAP security team.
  Review Logs: Check the system logs for any additional error messages or warnings that could provide more context about the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific class and the ESH functionality for any known issues or additional troubleshooting steps.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on troubleshooting.
  Enterprise Search Documentation: Review the official SAP documentation for Enterprise Search to understand the expected behavior and configuration requirements.
  Community Forums: Check SAP community forums or discussion boards for similar issues reported by other users and their solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.