How To Fix RS_PSA_DEP043 - Cannot change conversion direction again

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_PSA_DEP -

• Message number: 043

• Message text: Cannot change conversion direction again

What causes this issue?

The direction of the conversion of PSA table &V1& has already been
changed during a conversion. It cannot be changed again.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_PSA_DEP043 - Cannot change conversion direction again ?

  The SAP error message RS_PSA_DEP043: "Cannot change conversion direction again" typically occurs in the context of Data Warehousing, particularly when working with the Persistent Staging Area (PSA) in SAP BW (Business Warehouse). This error indicates that there is an issue with the conversion direction of data being loaded into the PSA.
  Cause:
  The error is usually caused by one of the following reasons:
  
  
  Inconsistent Data Load Settings: The conversion direction for a data source has already been set, and an attempt is being made to change it again. This can happen if the data source is configured to load data in a specific format (e.g., from a flat file or an SAP source) and there is an attempt to change the format or direction of the data load.
  
  
  Data Source Configuration: The data source might have been previously configured with a certain conversion direction, and any subsequent attempts to change this configuration without proper adjustments can lead to this error.
  
  
  Data Transfer Process (DTP) Issues: If there are inconsistencies in the DTP settings or if the DTP is trying to load data in a way that conflicts with the existing settings, this error can occur.
  
  
  Solution:
  To resolve the RS_PSA_DEP043 error, you can follow these steps:
  
  
  Check Data Source Settings:
  
  Go to the Data Source in the SAP BW system and check the settings for the conversion direction. Ensure that the settings are correct and consistent with the data you are trying to load.
  
  
  
  Review DTP Settings:
  
  Check the Data Transfer Process (DTP) associated with the data source. Make sure that the DTP settings align with the data source configuration and that there are no conflicting settings.
  
  
  
  Reset Conversion Direction:
  
  If you need to change the conversion direction, you may need to reset the data source or create a new data source with the desired settings. This may involve deleting the existing data source and creating a new one, or adjusting the settings in a way that allows for the change.
  
  
  
  Check for Existing Data:
  
  If there is already data loaded in the PSA, you may need to clear the PSA or handle the existing data before making changes to the conversion direction.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP BW you are using for any additional guidance or known issues related to this error.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  BW Data Modeling: Familiarize yourself with best practices in BW data modeling, especially regarding data sources and DTPs, to avoid similar issues in the future.
  
  By following these steps, you should be able to identify the cause of the RS_PSA_DEP043 error and implement a solution to resolve it.