How To Fix RSAR008 - BW &1 unknown in source system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 008

• Message text: BW &1 unknown in source system &2

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR008 - BW &1 unknown in source system &2 ?

  The SAP error message RSAR008, which states "BW &1 unknown in source system &2," typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data source or the connection to the source system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Incorrect Source System Configuration: The source system (e.g., an SAP ERP system) may not be correctly configured in the BW system.
  Missing or Incorrect DataSource: The DataSource that you are trying to access may not exist or may not be activated in the source system.
  Authorization Issues: The user may not have the necessary authorizations to access the source system or the specific DataSource.
  Network Issues: There may be connectivity issues between the BW system and the source system.
  Transport Issues: If the DataSource was recently transported, it may not have been properly activated in the target system.
  
  Solutions:
  
  
  Check Source System Configuration:
  
  Go to the BW system and check the configuration of the source system in transaction RSA1 (Data Warehousing Workbench).
  Ensure that the source system is correctly defined and active.
  
  
  
  Verify DataSource:
  
  In the source system, check if the DataSource exists and is activated. You can do this using transaction RSA1 in the source system.
  If the DataSource is missing, you may need to create or activate it.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the DataSource in the source system.
  You can check this using transaction SU53 after attempting to access the DataSource.
  
  
  
  Test Connectivity:
  
  Use transaction SM59 to check the RFC connection between the BW system and the source system.
  Test the connection to ensure that it is working properly.
  
  
  
  Re-transport DataSource:
  
  If the DataSource was recently transported, ensure that it has been activated in the target system.
  You may need to re-transport or re-activate the DataSource.
  
  
  
  Check for System Logs:
  
  Review the system logs for any additional error messages that may provide more context about the issue.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  SM59: RFC Destinations
  SU53: Authorization Check
  
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address the issue.
  Documentation: Refer to SAP Help documentation for BW and DataSources for more detailed information on configuration and troubleshooting.
  
  By following these steps, you should be able to identify and resolve the issue related to the RSAR008 error message in SAP BW.