How To Fix /UIF/LREP_CORE_MSG028 - Change type &1 is not registered

SAP Error Message - Details

• Message type: E = Error

• Message class: /UIF/LREP_CORE_MSG -

• Message number: 028

• Message text: Change type &1 is not registered

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UIF/LREP_CORE_MSG028 - Change type &1 is not registered ?

  The SAP error message /UIF/LREP_CORE_MSG028 Change type &1 is not registered typically occurs in the context of the SAP UI Framework, particularly when dealing with the SAP Fiori or UI5 applications. This error indicates that the system is trying to process a change type that has not been properly registered or defined in the system.
  Cause:
  
  Unregistered Change Type: The change type specified in the error message (&1) is not recognized by the system because it has not been registered in the relevant configuration or customization settings.
  Missing Configuration: The necessary configuration for the change type may be missing or incorrectly set up in the backend.
  Transport Issues: If the change type was recently transported from another system, it may not have been properly activated or registered in the target system.
  Development Errors: If you are developing custom applications or extensions, there may be an error in the code where the change type is defined or used.
  
  Solution:
  
  Check Registration: Verify that the change type is registered in the system. This can typically be done in the relevant customizing transaction or configuration settings.
  Review Configuration: Ensure that all necessary configurations related to the change type are correctly set up. This may involve checking the backend settings or the UI5 application configuration.
  Transport Management: If the change type was transported, ensure that all related objects and configurations were included in the transport request and that they have been successfully imported into the target system.
  Debugging: If you are developing custom applications, debug the code to ensure that the change type is being correctly referenced and that it exists in the system.
  Consult Documentation: Refer to SAP documentation or notes related to the specific change type and the UI framework you are using for any additional guidance or troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.