How To Fix RS_PSA_DEP068 - Conversion not allowed; reverse conversion almost finished (PSA table &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_PSA_DEP -

• Message number: 068

• Message text: Conversion not allowed; reverse conversion almost finished (PSA table &1)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_PSA_DEP068 - Conversion not allowed; reverse conversion almost finished (PSA table &1) ?

  The SAP error message RS_PSA_DEP068, which states "Conversion not allowed; reverse conversion almost finished (PSA table &1)," typically occurs in the context of data extraction and loading processes, particularly when dealing with the Persistent Staging Area (PSA) in SAP BW (Business Warehouse).
  Cause:
  This error usually arises when there is an issue with the data conversion process during the extraction of data from the source system into the PSA. The specific reasons can include:
  
  
  Data Type Mismatch: The data being loaded into the PSA does not match the expected data types defined in the PSA table. This can happen if the source data has changed or if there are inconsistencies in the data model.
  
  
  Incomplete Data Load: If a previous data load was interrupted or not completed successfully, it may leave the PSA in a state where it cannot accept new data.
  
  
  Transformation Issues: If there are transformations defined in the data flow that are not compatible with the incoming data, this can lead to conversion errors.
  
  
  Data Integrity Issues: Corrupted or invalid data in the source system can also lead to this error.
  
  
  Solution:
  To resolve the RS_PSA_DEP068 error, you can take the following steps:
  
  
  Check Data Types: Verify that the data types in the source system match those defined in the PSA table. Make any necessary adjustments to ensure compatibility.
  
  
  Review Previous Load: Check the status of the last data load to the PSA. If it was incomplete, you may need to delete the incomplete records or reset the PSA table before attempting to load data again.
  
  
  Examine Transformations: Review any transformations applied in the data flow to ensure they are correctly defined and compatible with the incoming data.
  
  
  Data Cleansing: If there are known issues with the source data, perform data cleansing to correct any invalid or corrupted records.
  
  
  Re-run the Data Load: After addressing the above issues, attempt to re-run the data load process to see if the error persists.
  
  
  Check Logs: Review the logs for more detailed error messages that can provide additional context on what might be causing the conversion issue.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Flow Monitoring: Use the SAP BW monitoring tools to track the data flow and identify where the error occurs.
  Documentation: Refer to SAP documentation for best practices on data extraction and loading processes, especially regarding the use of the PSA.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or BW team for further investigation, as they may have access to more detailed system logs and configurations.