How To Fix RSAN_WB020 - Error when reading data type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_WB - Messages for Analysis Designer

• Message number: 020

• Message text: Error when reading data type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_WB020 - Error when reading data type &1 ?

  The SAP error message RSAN_WB020 typically occurs in the context of SAP BW (Business Warehouse) when there is an issue related to reading a specific data type. This error can arise during data extraction, transformation, or loading processes, particularly when working with InfoObjects or data sources.
  Cause:
  The error message RSAN_WB020 indicates that there is a problem with the data type specified in the process. Common causes include:
  
  Data Type Mismatch: The data type defined in the InfoObject or data source does not match the expected data type in the target structure.
  Missing or Incorrect Metadata: The metadata for the InfoObject or data source may be incomplete or incorrectly defined.
  Data Source Issues: The data source may not be properly configured or may be pointing to an invalid or non-existent table.
  Transport Issues: If the InfoObject or data source was transported from one system to another, there may be inconsistencies in the data types.
  
  Solution:
  To resolve the RSAN_WB020 error, you can follow these steps:
  
  
  Check Data Types: Verify that the data types of the InfoObject or data source match the expected data types in the target structure. You can do this by checking the definitions in the SAP BW modeling tools.
  
  
  Review Metadata: Ensure that all necessary metadata for the InfoObject or data source is correctly defined. This includes checking attributes, key figures, and any transformations applied.
  
  
  Validate Data Source Configuration: Check the configuration of the data source to ensure it is correctly set up. This includes verifying the source system connection and the underlying database tables.
  
  
  Re-activate InfoObjects: If you suspect that the InfoObject is not correctly activated, you can try reactivating it. This can sometimes resolve issues related to metadata inconsistencies.
  
  
  Check for Transport Issues: If the InfoObject or data source was recently transported, ensure that all related objects were transported correctly and that there are no missing dependencies.
  
  
  Debugging: If the issue persists, consider using the SAP BW debugging tools to trace the execution and identify where the error is occurring.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for detailed information on InfoObjects, data sources, and data types.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue cannot be resolved through the above steps, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the RSAN_WB020 error in your SAP BW environment.