How To Fix RSDTM102 - You have not selected an external source system.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDTM - Data Mining Connection Messages

• Message number: 102

• Message text: You have not selected an external 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.

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

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDTM102 - You have not selected an external source system. ?

  The SAP error message RSDTM102, which states "You have not selected an external source system," typically occurs in the context of SAP BW (Business Warehouse) when you are trying to create or modify a DataSource or when you are working with data extraction from an external source system.
  Cause:
  This error usually arises due to one of the following reasons:
  
  No Source System Selected: You have not selected an external source system in the DataSource configuration or during the data extraction process.
  Incorrect Configuration: The DataSource may not be properly configured to link to an external source system.
  Authorization Issues: You may not have the necessary authorizations to access the external source system.
  Technical Issues: There could be technical issues with the connection to the external source system.
  
  Solution:
  To resolve the RSDTM102 error, you can follow these steps:
  
  
  Select an External Source System:
  
  Go to the DataSource configuration in the SAP BW system.
  Ensure that you have selected the appropriate external source system from the available options.
  
  
  
  Check DataSource Configuration:
  
  Verify that the DataSource is correctly configured to connect to the external source system.
  Ensure that all required fields are filled out correctly.
  
  
  
  Review Authorizations:
  
  Check your user authorizations to ensure you have the necessary permissions to access the external source system.
  If needed, contact your SAP security administrator to grant the required authorizations.
  
  
  
  Test Connection:
  
  If applicable, test the connection to the external source system to ensure it is active and reachable.
  You can do this through transaction codes like RSA1 (Data Warehousing Workbench) or using the relevant connection test tools.
  
  
  
  Check for Technical Issues:
  
  Look for any technical issues that might be affecting the connection to the external source system.
  Review system logs for any error messages that might provide additional context.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance related to the DataSource you are working with.
  
  
  
  Related Information:
  
  Transaction Codes: Common transaction codes related to DataSources in SAP BW include RSA1 (Data Warehousing Workbench), RSO2 (Maintain DataSource), and RSO1 (DataSource Overview).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message RSDTM102.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the RSDTM102 error and successfully work with your external source system in SAP BW.