How To Fix RJ421 - InfoSource is still being used by transfer structures

SAP Error Message - Details

• Message type: E = Error

• Message class: RJ - BW Extractor Handling Message Class

• Message number: 421

• Message text: InfoSource is still being used by transfer structures

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RJ421 - InfoSource is still being used by transfer structures ?

  The SAP error message RJ421 indicates that an InfoSource is still being used by transfer structures, which means that you cannot delete or modify the InfoSource until it is no longer in use. This is a common issue in SAP BW (Business Warehouse) when trying to manage InfoSources and their dependencies.
  Cause:
  The error occurs because the InfoSource you are trying to delete or modify is still linked to one or more transfer structures. Transfer structures are used to transfer data from the source system to the data warehouse, and they maintain a relationship with InfoSources. If an InfoSource is still being referenced, SAP will prevent any changes to ensure data integrity.
  Solution:
  To resolve this error, you need to identify and remove the dependencies that are causing the InfoSource to be in use. Here are the steps you can follow:
  
  
  Identify Transfer Structures:
  
  Go to the SAP BW modeling tools or transaction codes like RSA1 (Data Warehousing Workbench).
  Navigate to the InfoSource in question and check which transfer structures are associated with it.
  
  
  
  Remove Dependencies:
  
  If you find that the InfoSource is linked to transfer structures, you will need to either delete or modify those transfer structures to remove the dependency.
  You can do this by going to the transfer structure and either deleting it or changing its settings to no longer reference the InfoSource.
  
  
  
  Check for Other Dependencies:
  
  Ensure that there are no other objects (like DataSources, InfoObjects, or InfoCubes) that are still using the InfoSource. You may need to check these objects as well.
  
  
  
  Delete or Modify the InfoSource:
  
  Once all dependencies have been removed, you should be able to delete or modify the InfoSource without encountering the RJ421 error.
  
  
  
  Transport Changes:
  
  If you are working in a development environment, remember to transport your changes to the production environment after testing.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSO2 (Manage InfoSources), and RSO1 (Manage DataSources).
  Documentation: Refer to SAP Help documentation for detailed information on managing InfoSources and transfer structures.
  Best Practices: Regularly review and clean up unused InfoSources and transfer structures to avoid such issues in the future.
  
  By following these steps, you should be able to resolve the RJ421 error and manage your InfoSources effectively.