How To Fix RSDME854 - Model &1 is not attached to BW DataSource

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 854

• Message text: Model &1 is not attached to BW DataSource

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME854 - Model &1 is not attached to BW DataSource ?

  The SAP error message RSDME854 indicates that a specific model (in this case, represented by &1) is not attached to the BW DataSource. This error typically arises in the context of SAP BW (Business Warehouse) when there is an attempt to use a DataSource that has not been properly linked to a model in the BW system.
  Cause:
  
  Model Not Attached: The primary cause of this error is that the specified model has not been associated with the DataSource in the BW system. This can happen if the model was created but not linked to the DataSource.
  Incorrect Configuration: There may be a misconfiguration in the DataSource settings or the model settings.
  DataSource Deletion: The DataSource might have been deleted or is inactive, leading to the model being unable to reference it.
  Transport Issues: If the model or DataSource was transported from another system, the transport might not have included the necessary attachments.
  
  Solution:
  To resolve the RSDME854 error, you can follow these steps:
  
  
  Check Model Attachment:
  
  Go to the SAP BW modeling tools (e.g., SAP BW Modeling Tools in Eclipse or the SAP GUI).
  Navigate to the DataSource in question and check if the model is attached.
  If it is not attached, you can attach the model to the DataSource.
  
  
  
  Reattach the Model:
  
  If the model is not linked, you can do this by editing the DataSource and selecting the appropriate model to attach it.
  Ensure that the model is active and correctly configured.
  
  
  
  Validate DataSource:
  
  Check the DataSource for any inconsistencies or errors. You can do this by using transaction codes like RSA1 (Data Warehousing Workbench) to validate the DataSource.
  
  
  
  Check Transport Requests:
  
  If the model or DataSource was transported, ensure that all necessary objects were included in the transport request.
  You may need to re-transport the objects if they were not included.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of BW you are using for any additional troubleshooting steps or known issues.
  
  
  
  System Logs:
  
  Check system logs for any additional error messages that might provide more context about the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 for Data Warehousing Workbench, RSD1 for InfoObjects, and RSD5 for DataSources.
  SAP Notes: Search for SAP Notes related to RSDME854 for any specific patches or updates that may address this issue.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RSDME854 error and successfully attach the model to the BW DataSource.