How To Fix 0T046 - System was redefined as controller

SAP Error Message - Details

• Message type: E = Error

• Message class: 0T - WBO Configuration Editor / SE06

• Message number: 046

• Message text: System was redefined as controller

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 0T046 - System was redefined as controller ?

  The SAP error message "0T046 System was redefined as controller" typically occurs in the context of SAP systems that are configured for system monitoring or when there are issues with the configuration of the system landscape. This error indicates that the system has been redefined in a way that affects its role or function, particularly in relation to system monitoring or control.
  Cause:
  
  System Redefinition: The error often arises when a system that was previously defined as a "managed system" is redefined as a "controller" system in the SAP Landscape Management (LaMa) or similar tools.
  Configuration Changes: Changes in the configuration of the system landscape, such as moving systems between different roles (e.g., from managed to controller), can trigger this error.
  Transport Issues: If there are issues with transport requests that affect system roles or configurations, this error may also occur.
  Inconsistent System State: The system may be in an inconsistent state due to failed updates or incomplete configurations.
  
  Solution:
  
  Check System Roles: Verify the roles assigned to the system in the SAP Landscape Management or the relevant configuration tool. Ensure that the system is correctly defined as either a managed system or a controller.
  Reconfigure the System: If the system has been incorrectly redefined, you may need to reconfigure it back to its intended role. This can involve using transaction codes like SICF or SMD to adjust the settings.
  Review Transport Requests: Check for any transport requests that may have affected the system configuration. If necessary, revert or adjust these transports.
  System Monitoring Configuration: If the error is related to system monitoring, ensure that the monitoring configuration is correctly set up and that all necessary components are in place.
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may provide specific guidance on this error. SAP's support portal can be a valuable resource.
  Restart Services: Sometimes, simply restarting the relevant services or the entire system can resolve transient issues.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to error 0T046 for any specific patches or updates that may address the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Documentation: Review the official SAP documentation for system landscape management and monitoring to ensure compliance with best practices.
  
  If the issue persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.