How To Fix RSAR278 - Source system name cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 278

• Message text: Source system name cannot be changed

What causes this issue?

The name of the source system was changed during the definition of the
RFC destination. This is not allowed here.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Call up the function again and leave the name of the source system
unchanged in the definition of the RFC destination.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR278 - Source system name cannot be changed ?

  The SAP error message RSAR278, which states "Source system name cannot be changed," typically occurs in the context of SAP BW (Business Warehouse) when you attempt to change the name of a source system that is already defined in the system. This error is related to the configuration of data sources and their associated source systems.
  Cause:
  The primary cause of this error is that the source system name is a key identifier in the SAP BW system. Once a source system is created and used for data extraction, its name cannot be changed because it may affect data consistency, data flow, and the integrity of the data models that rely on that source system.
  Solution:
  To resolve this error, you have a few options:
  
  
  Create a New Source System: Instead of trying to change the name of the existing source system, you can create a new source system with the desired name. After creating the new source system, you can configure it as needed and migrate any necessary settings or data flows.
  
  
  Use the Existing Source System: If changing the name is not critical, consider using the existing source system as is. You can adjust your configurations or documentation to reflect the existing name.
  
  
  Check for Dependencies: Before making any changes, ensure that there are no dependencies or configurations that would be affected by the name change. This includes data sources, InfoProviders, and any other objects that reference the source system.
  
  
  Consult Documentation: Review SAP documentation or notes related to source systems and data extraction to ensure you are following best practices.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error. SAP Notes can often provide patches or workarounds for specific issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues. You can find discussions and solutions that may help you.
  SAP BW Documentation: Review the official SAP BW documentation for guidelines on managing source systems and data extraction processes.
  
  If you continue to face issues or if the situation is complex, consider reaching out to your SAP support team or a consultant with expertise in SAP BW for further assistance.