How To Fix RSDME339 - BW update not possible; more than one model key found

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 339

• Message text: BW update not possible; more than one model key found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME339 - BW update not possible; more than one model key found ?

  The SAP error message RSDME339, which states "BW update not possible; more than one model key found," typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data model or the data source being used for an update. This error indicates that the system has encountered multiple entries for a model key that should be unique, leading to ambiguity in the data processing.
  Cause:
  
  Duplicate Model Keys: The primary cause of this error is the presence of duplicate entries for a model key in the data source or the InfoProvider. This can happen if the data is not properly maintained or if there are inconsistencies in the data model.
  Incorrect Data Source Configuration: If the data source is not correctly configured or if there are issues with the underlying database, it may lead to multiple records being returned for a single key.
  Data Load Issues: During data loading processes, if the data is not properly transformed or if there are issues with the data extraction, it can lead to duplicates.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Review the data in the underlying database or the InfoProvider to identify any duplicate entries for the model key. You can use SQL queries or BW tools to analyze the data.
  If duplicates are found, you will need to clean up the data to ensure that each model key is unique.
  
  
  
  Data Source Configuration:
  
  Verify the configuration of the data source in SAP BW. Ensure that the extraction logic is correctly set up to avoid returning multiple records for the same key.
  Check the transformation rules and ensure that they are correctly defined to handle the data appropriately.
  
  
  
  Update the Data Model:
  
  If the data model itself is causing the issue, consider revising the model to ensure that it adheres to the expected structure and uniqueness constraints.
  You may need to adjust the InfoObjects or the InfoProvider settings to ensure that they align with the data being loaded.
  
  
  
  Data Load Process:
  
  Review the data load process to ensure that it is functioning correctly. Check for any errors or warnings during the data load that might indicate issues with data integrity.
  If necessary, reprocess the data load after resolving any identified issues.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can help resolve the issue.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to analyze the InfoProviders and data sources.
  Data Modeling: Familiarize yourself with data modeling concepts in SAP BW, including InfoObjects, InfoProviders, and transformations.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the RSDME339 error and implement the necessary solutions to resolve it.