How To Fix RS_PSA_DEP079 - Conversion of DataSource &1 (&2) refused because of altered M version

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_PSA_DEP -

• Message number: 079

• Message text: Conversion of DataSource &1 (&2) refused because of altered M version

What causes this issue?

Changes have been made to DataSource &V1& (Logsys &V2&)<(>,<)> which
have not been activated. This can lead to potentially unwanted results
during conversion.

System Response

The conversion is not performed.

How to fix this error?

You need to activate the DataSource before starting the conversion.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_PSA_DEP079 - Conversion of DataSource &1 (&2) refused because of altered M version ?

  The SAP error message RS_PSA_DEP079 indicates that there is an issue with the DataSource version in the context of the Persistent Staging Area (PSA) in SAP BW (Business Warehouse). This error typically occurs when there is a mismatch between the version of the DataSource in the source system and the version that is currently defined in the BW system.
  Cause:
  The error is caused by one of the following reasons:
  
  DataSource Version Change: The DataSource in the source system has been altered (e.g., fields added, removed, or changed) after it was initially replicated into the BW system. This change results in a version mismatch.
  Replication Issues: The DataSource may not have been replicated correctly after the changes were made in the source system.
  Inconsistent Metadata: The metadata in the BW system does not match the current structure of the DataSource in the source system.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check DataSource Version:
  
  Go to the source system and check the version of the DataSource. You can do this using transaction code RSA1 in the BW system or using the DataSource maintenance transaction in the source system.
  
  
  
  Replicate DataSource:
  
  If the DataSource has been altered, you need to replicate it again in the BW system. This can be done by:
  
  Going to the DataSource maintenance in the BW system (transaction RSA1).
  Selecting the DataSource and choosing the option to replicate it again.
  
  
  
  
  
  Adjust DataSource:
  
  If necessary, adjust the DataSource in the BW system to match the new structure. This may involve modifying the DataSource definition, including fields, data types, etc.
  
  
  
  Check for Errors:
  
  After replication, check for any errors in the DataSource or in the data loading process. You can do this by monitoring the data load process in the BW system.
  
  
  
  Test Data Load:
  
  Once the DataSource has been successfully replicated and adjusted, perform a test data load to ensure that the data can be extracted without errors.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSD1: InfoObject Maintenance
  RSPC: Process Chain Maintenance
  
  
  Documentation: Refer to SAP Help documentation for more details on DataSource replication and management.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to DataSource replication and versioning.
  
  By following these steps, you should be able to resolve the RS_PSA_DEP079 error and ensure that your DataSource is correctly configured for data extraction in SAP BW.