How To Fix RS_PSA_DEP066 - Reverse conversion of table &1 (write-optimized DSO &2) started

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_PSA_DEP -

• Message number: 066

• Message text: Reverse conversion of table &1 (write-optimized DSO &2) started

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_PSA_DEP066 - Reverse conversion of table &1 (write-optimized DSO &2) started ?

  The SAP error message RS_PSA_DEP066 typically occurs in the context of data extraction and loading processes, particularly when dealing with write-optimized DataStore Objects (DSOs) in SAP BW (Business Warehouse). This error indicates that there is an issue with the reverse conversion of a table during the data loading process.
  Cause:
  The error can be caused by several factors, including:
  
  Data Consistency Issues: There may be inconsistencies in the data being loaded into the write-optimized DSO, such as missing or incorrect keys.
  Data Type Mismatches: The data types of the source data may not match the expected data types in the target DSO.
  Locking Issues: The DSO may be locked by another process, preventing the reverse conversion from completing.
  Configuration Issues: There may be misconfigurations in the DSO settings or the data flow process.
  
  Solution:
  To resolve the RS_PSA_DEP066 error, you can take the following steps:
  
  Check Data Consistency: Ensure that the data being loaded is consistent and adheres to the expected format and structure. Validate the source data for any anomalies.
  Review Data Types: Verify that the data types in the source system match those defined in the DSO. Make any necessary adjustments to ensure compatibility.
  Check Locks: Investigate if the DSO is locked by another process. You can use transaction codes like SM12 to check for locks and SM21 for system logs to identify any issues.
  Monitor Data Load Process: Use transaction codes like RSA1 (Data Warehousing Workbench) to monitor the data load process and identify any specific errors or warnings that may provide more context.
  Reprocess the Data Load: If the issue persists, consider reprocessing the data load. You may need to delete the erroneous data from the PSA (Persistent Staging Area) and reload it.
  Check DSO Configuration: Review the configuration settings of the DSO to ensure that they are correctly set up for the data being loaded.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSMO (Monitor Data Load), and SM37 (Job Monitoring) to help diagnose and resolve issues.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message. You can search the SAP Support Portal for specific notes related to RS_PSA_DEP066.
  Documentation: Review SAP documentation on write-optimized DSOs and data loading processes to better understand the underlying mechanisms and best practices.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.