How To Fix CONOBJ021 - Cannot instantiate server group

SAP Error Message - Details

• Message type: E = Error

• Message class: CONOBJ - Control Objects for Background Processing

• Message number: 021

• Message text: Cannot instantiate server group

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 CONOBJ021 - Cannot instantiate server group ?

  The SAP error message CONOBJ021: Cannot instantiate server group typically occurs in the context of SAP's application server configuration, particularly when there are issues related to the server group setup or the connection to the server.
  Causes:
  
  Configuration Issues: The server group may not be properly configured in the SAP system. This could be due to missing or incorrect entries in the instance profile or the server group configuration.
  Network Issues: There may be network connectivity problems preventing the application server from communicating with the database or other required services.
  Resource Availability: The required resources (like memory or CPU) may not be available, leading to the inability to instantiate the server group.
  Authorization Issues: The user or service account attempting to instantiate the server group may not have the necessary permissions.
  System Load: High system load or resource contention can prevent the server group from being instantiated.
  
  Solutions:
  
  
  Check Configuration:
  
  Verify the configuration of the server group in the SAP system. Ensure that all necessary parameters are correctly set in the instance profile.
  Use transaction SMLG to check the server group configuration and ensure that all instances are correctly assigned.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues affecting the communication between the application server and the database or other services.
  Use tools like ping or traceroute to check connectivity.
  
  
  
  Resource Monitoring:
  
  Monitor system resources (CPU, memory, etc.) to ensure that there are sufficient resources available for the server group to instantiate.
  Use transaction SM50 or SM66 to check for any long-running processes or resource contention.
  
  
  
  Authorization Check:
  
  Ensure that the user or service account has the necessary authorizations to instantiate the server group. Check roles and profiles assigned to the user.
  
  
  
  Restart Services:
  
  If the issue persists, consider restarting the affected application server or the entire SAP system to clear any transient issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review SAP documentation related to server group configuration and management for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem continues after trying the above solutions, it may be necessary to contact SAP support for further assistance.