How To Fix RSDHA184 - Missing model class '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 184

• Message text: Missing model class '&1'

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 RSDHA184 - Missing model class '&1' ?

  The SAP error message RSDHA184, which states "Missing model class '&1'", typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data model or the configuration of the InfoProvider. This error indicates that the system is unable to find the specified model class, which is essential for the operation of the InfoProvider.
  Cause:
  
  Missing Model Class: The specified model class is not defined in the system. This could happen if the model class was deleted or not properly activated.
  Transport Issues: If the model class was transported from another system, it may not have been included in the transport request or may not have been activated in the target system.
  Configuration Errors: There may be configuration errors in the InfoProvider or the associated data model that prevent the system from recognizing the model class.
  Version Mismatch: There could be a version mismatch between the InfoProvider and the model class, especially if changes were made in the development environment but not transported to the production environment.
  
  Solution:
  
  Check Model Class Definition: Verify that the model class specified in the error message exists in the system. You can do this by navigating to the relevant transaction (e.g., RSA1 for Data Warehousing Workbench) and checking the model classes.
  Re-activate the Model Class: If the model class exists but is not active, try re-activating it. This can often resolve issues related to missing definitions.
  Transport Check: If the model class was recently transported, ensure that the transport request was completed successfully and that all necessary objects were included.
  Review Configuration: Check the configuration of the InfoProvider and ensure that it is correctly set up to reference the model class. Look for any inconsistencies or errors in the settings.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP BW you are using for any known issues or additional troubleshooting steps.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP BW Documentation: Review the official SAP BW documentation for best practices in managing model classes and InfoProviders.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.