How To Fix TWBHS456 - Enter a source system

SAP Error Message - Details

• Message type: E = Error

• Message class: TWBHS - Test Workbench messages

• Message number: 456

• Message text: Enter a source system

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TWBHS456 - Enter a source system ?

  The SAP error message TWBHS456, which states "Enter a source system," typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when you are trying to create or modify a data source, but the system requires you to specify a source system.
  Cause:
  
  Missing Source System: The error usually indicates that the source system field is either empty or not properly defined in the context of the operation you are trying to perform.
  Configuration Issues: There may be issues with the configuration of the source system in the SAP BW system.
  User Input Error: The user may have overlooked entering the source system when prompted.
  
  Solution:
  
  Enter Source System: Ensure that you enter a valid source system in the relevant field. This is typically done in the data source configuration screen.
  Check Source System Configuration:
  
  Go to the transaction code RSA1 (Data Warehousing Workbench).
  Navigate to the "Source Systems" section and verify that the source system you are trying to use is correctly configured and active.
  
  
  Create Source System: If the source system does not exist, you may need to create it:
  
  In the Data Warehousing Workbench, right-click on "Source Systems" and select "Create."
  Follow the prompts to define the new source system.
  
  
  Authorization Check: Ensure that you have the necessary authorizations to access and modify the source system settings.
  Check for Transport Issues: If the source system was recently transported, ensure that the transport was successful and that all necessary objects are in place.
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed steps on configuring source systems in SAP BW.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights and troubleshooting tips from other users who may have encountered the same issue.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis or BW support team for further assistance.