How To Fix R7088 - Source system &1 already exists in the list

SAP Error Message - Details

• Message type: E = Error

• Message class: R7 - BW: Data basis

• Message number: 088

• Message text: Source system &1 already exists in the list

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 R7088 - Source system &1 already exists in the list ?

  The SAP error message R7088 indicates that there is an attempt to add a source system to a list (such as a logical system or a data source) that already exists. This typically occurs in scenarios involving data transfer, such as in SAP BW (Business Warehouse) or when configuring connections between different SAP systems.
  Cause:
  The error is caused by trying to add a source system that is already present in the configuration. This can happen due to:
  
  Duplicate entries in the configuration settings.
  An attempt to register a source system that has already been registered.
  Misconfiguration in the system settings or during data source setup.
  
  Solution:
  To resolve the R7088 error, you can follow these steps:
  
  
  Check Existing Source Systems:
  
  Go to the relevant transaction (e.g., RSA1 for BW) and check the list of existing source systems.
  Verify if the source system you are trying to add is already listed.
  
  
  
  Remove Duplicate Entries:
  
  If you find that the source system is already present, you may need to remove the duplicate entry or adjust your configuration to avoid the conflict.
  
  
  
  Correct Configuration:
  
  Ensure that the configuration settings for the source system are correct and do not contain duplicates.
  If you are using a transport request, ensure that the transport does not contain conflicting entries.
  
  
  
  Check for Active Connections:
  
  If the source system is already connected and active, you may not need to add it again. Instead, check the existing connection settings.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of SAP you are using for any additional guidance on handling source systems.
  
  
  
  System Restart:
  
  In some cases, a system restart may help clear temporary issues, but this should be done with caution and in accordance with your organization's IT policies.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench (for BW)
  SM59: RFC Destinations (to check connections)
  SE11: Data Dictionary (to check logical systems)
  
  
  
  SAP Notes:
  
  Check SAP Notes for any known issues or patches related to this error message. You can search for R7088 in the SAP Support Portal.
  
  
  
  Logs and Traces:
  
  Review system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  By following these steps, you should be able to identify the cause of the R7088 error and implement a solution to resolve it. If the issue persists, consider reaching out to SAP support for further assistance.