How To Fix RSDL121 - No technical PSA name for DataSource & exists in RSTSOSS

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDL - BW DB Connect

• Message number: 121

• Message text: No technical PSA name for DataSource & exists in RSTSOSS

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDL121 - No technical PSA name for DataSource & exists in RSTSOSS ?

  The SAP error message RSDL121 indicates that there is no technical Persistent Staging Area (PSA) name for a DataSource, and it exists in the RSTSOSS table. This error typically occurs in the context of SAP BW (Business Warehouse) when trying to load data from a DataSource that is not properly configured or is missing necessary metadata.
  Cause:
  
  Missing Technical PSA Name: The DataSource does not have a defined technical PSA name in the system. This can happen if the DataSource was not properly activated or if there was an issue during its creation.
  Inconsistent Metadata: The metadata for the DataSource may be inconsistent or incomplete, leading to the system being unable to find the necessary PSA information.
  DataSource Not Activated: The DataSource may not have been activated in the BW system, which is required for it to function correctly.
  Transport Issues: If the DataSource was transported from another system, there may have been issues during the transport process that led to missing or incomplete metadata.
  
  Solution:
  
  
  Check DataSource Activation:
  
  Go to the DataSource in the SAP BW system and ensure that it is activated. You can do this in the Data Warehousing Workbench (transaction RSA1).
  If it is not activated, activate it and check if the error persists.
  
  
  
  Define Technical PSA Name:
  
  If the technical PSA name is missing, you may need to manually define it. This can typically be done in the DataSource settings.
  Navigate to the DataSource and check the settings for the PSA. If it is not defined, you can create a new PSA for the DataSource.
  
  
  
  Check RSTSOSS Table:
  
  Investigate the RSTSOSS table to see if there are any entries related to the DataSource in question. This table contains information about DataSources and their status.
  If there are inconsistencies, you may need to correct them or remove the problematic entries.
  
  
  
  Recreate DataSource:
  
  If the above steps do not resolve the issue, consider deleting and recreating the DataSource. Ensure that all necessary configurations are correctly set during the recreation process.
  
  
  
  Transport Issues:
  
  If the DataSource was transported, check the transport logs for any errors or warnings. You may need to re-transport the DataSource or manually adjust the metadata.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSO2: Maintain DataSource
  RSTT: Transport Management
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP BW documentation for best practices on DataSource configuration and management.
  
  By following these steps, you should be able to resolve the RSDL121 error and ensure that your DataSource is properly configured for data loading in SAP BW.