How To Fix SCDT_SYS602 - Instance &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: SCDT_SYS - Scout and Solar System Maintenance

• Message number: 602

• Message text: Instance &1 already exists

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 SCDT_SYS602 - Instance &1 already exists ?

  The SAP error message SCDT_SYS602, which states "Instance &1 already exists," typically occurs in the context of SAP's System Landscape Directory (SLD) or when dealing with system configuration in SAP systems. This error indicates that there is an attempt to create or register a system instance that already exists in the system landscape.
  Cause:
  
  Duplicate Registration: The most common cause of this error is that the system instance you are trying to register or create is already registered in the SLD or the relevant configuration area.
  Incorrect Configuration: There may be a misconfiguration in the system settings or landscape configuration that leads to the system being recognized as already existing.
  Data Consistency Issues: There could be inconsistencies in the database or configuration files that lead to the system being recognized multiple times.
  
  Solution:
  
  
  Check Existing Instances: 
  
  Go to the SLD or the relevant configuration area and check if the instance with the specified identifier (e.g., &1) already exists.
  If it does, you may need to update or modify the existing instance instead of creating a new one.
  
  
  
  Delete Duplicate Entries: 
  
  If you find that there are duplicate entries, you may need to delete the unnecessary or incorrect instance from the SLD or configuration area.
  Ensure that you have the necessary permissions and that you are aware of the implications of deleting an instance.
  
  
  
  Review Configuration Settings: 
  
  Check the configuration settings in your SAP system to ensure that they are correct and do not lead to duplicate registrations.
  Verify the parameters in the instance profile or configuration files.
  
  
  
  Restart Services: 
  
  Sometimes, restarting the relevant services or the entire SAP system can help resolve temporary inconsistencies.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to SLD and system registration for any specific instructions or troubleshooting steps.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  System Landscape Directory (SLD): Familiarize yourself with the SLD and its role in managing system instances and landscape configurations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify the cause of the SCDT_SYS602 error and implement a solution to resolve it.