How To Fix RSM821 - Request &2 already exists in InfoCube/DSO &1; not added

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 821

• Message text: Request &2 already exists in InfoCube/DSO &1; not added

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM821 - Request &2 already exists in InfoCube/DSO &1; not added ?

  The SAP error message RSM821 indicates that a data request (or data load request) is attempting to be added to an InfoCube or DataStore Object (DSO) that already contains a request with the same identifier. This typically occurs during the data loading process in SAP BW (Business Warehouse) when the system detects that the request you are trying to load has already been processed and exists in the target InfoCube or DSO.
  Cause:
  
  Duplicate Request: The most common cause is that the data request you are trying to load has already been processed and exists in the InfoCube or DSO.
  Reprocessing: You might be trying to reprocess a request that has already been successfully loaded.
  Data Load Logic: There may be issues in the data load logic or process chain that are causing the same request to be attempted multiple times.
  
  Solution:
  
  
  Check Existing Requests: 
  
  Go to the InfoCube or DSO in question and check the existing requests to confirm if the request you are trying to load is already present.
  You can do this by navigating to the Data Warehousing Workbench (transaction RSA1) and looking at the request overview for the specific InfoProvider.
  
  
  
  Use a Different Request: 
  
  If you need to load new data, ensure that you are using a different request ID or that the data being loaded is indeed new and not a duplicate.
  
  
  
  Delete or Manage Existing Requests: 
  
  If the existing request is not needed, you can delete it from the InfoCube or DSO. Be cautious with this approach, as it may affect reports or other processes relying on that data.
  
  
  
  Adjust Data Load Process: 
  
  Review the data load process or process chain to ensure that it is not attempting to load the same request multiple times. Adjust the logic if necessary.
  
  
  
  Check for Errors in Previous Loads: 
  
  Sometimes, if a previous load failed, it might cause the system to attempt to reload the same request. Ensure that all previous loads have been completed successfully.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  RSMO: Monitor Data Loads
  RSPC: Process Chain Maintenance
  
  
  
  SAP Notes: 
  
  Check for any relevant SAP Notes that might address specific issues related to this error message or provide additional troubleshooting steps.
  
  
  
  Documentation: 
  
  Review SAP BW documentation for best practices on data loading and managing requests in InfoCubes and DSOs.
  
  
  
  By following these steps, you should be able to resolve the RSM821 error and successfully manage your data loading processes in SAP BW.