How To Fix RSB4HANA105 - DataSource &1 PSA table not empty. Delete requests before DTP transfer.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSB4HANA - B4HANA

• Message number: 105

• Message text: DataSource &1 PSA table not empty. Delete requests before DTP transfer.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSB4HANA105 - DataSource &1 PSA table not empty. Delete requests before DTP transfer. ?

  The SAP error message RSB4HANA105 indicates that the Persistent Staging Area (PSA) table for a specific DataSource is not empty, which prevents the Data Transfer Process (DTP) from executing successfully. This situation typically arises when there are existing records in the PSA table that need to be cleared before new data can be loaded.
  Cause:
  The error occurs because the DTP is trying to load data into a PSA table that already contains data. This is a common scenario when:
  
  Previous data loads have not been deleted.
  The DTP is configured to require an empty PSA before loading new data.
  There may be a configuration issue or a misunderstanding of the data load process.
  
  Solution:
  To resolve this error, you need to delete the existing records in the PSA table for the specified DataSource. Here are the steps to do this:
  
  
  Access the DataSource in SAP BW:
  
  Go to the SAP BW system and navigate to the Data Warehousing Workbench (transaction code RSA1).
  
  
  
  Locate the DataSource:
  
  Find the DataSource that is causing the error. You can do this by navigating to the relevant InfoSource or InfoProvider.
  
  
  
  Open the PSA Table:
  
  Right-click on the DataSource and select "Manage" or "Display PSA" to view the contents of the PSA table.
  
  
  
  Delete Existing Records:
  
  In the PSA management screen, you will see the existing records. You can delete them by selecting the records and choosing the delete option (usually a trash can icon or a delete button).
  If you want to delete all records, you can use the "Delete All" option.
  
  
  
  Re-run the DTP:
  
  After clearing the PSA table, go back to the DTP and re-run the data transfer process. It should now execute successfully without the error.
  
  
  
  Related Information:
  
  PSA Table: The Persistent Staging Area is a temporary storage area in SAP BW where data is stored before it is transformed and loaded into the final target (like an InfoCube or Data Mart).
  DTP (Data Transfer Process): This is a process in SAP BW that defines how data is transferred from a source (like a DataSource) to a target (like an InfoProvider).
  Data Load Management: It's essential to manage data loads carefully in SAP BW to avoid issues like this. Regularly monitoring and cleaning up the PSA can help maintain smooth operations.
  
  Additional Tips:
  
  Consider setting up a regular maintenance job to clear out old data from the PSA if your data load processes frequently encounter this issue.
  Review the DTP settings to ensure they align with your data loading strategy, especially regarding how it handles existing data in the PSA.
  
  By following these steps, you should be able to resolve the RSB4HANA105 error and successfully load data into your SAP BW system.