How To Fix RSM809 - No mapping defined for source system &

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 809

• Message text: No mapping defined for source system &

What causes this issue?

No renaming has been defined for the source system &V1&.

How to fix this error?

The name of the source system is transported along with the
InfoPackages. Since these names do not normally match in the test- and p
roductive systems, you can rename them in the table RSLOGSYSMAP using
view maintenance with the view V_RSLOGSYSMAP (transaction SM30).
This has not been successful for the source system &V1&. The import for
the InfoPackage &V2& was, however, executed because the source system
&V1& is recognized in BW.
Check if you really need to replace the names.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSM809 - No mapping defined for source system & ?

  The SAP error message RSM809 "No mapping defined for source system &" typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data source or the mapping configuration between the source system and the BW system. This error indicates that the system cannot find a defined mapping for the specified source system, which is necessary for data extraction or loading.
  Causes:
  
  Missing or Incorrect Mapping: The mapping between the source system and the BW system may not be defined or may be incorrectly configured.
  Source System Not Registered: The source system may not be properly registered in the BW system.
  Transport Issues: If the mapping was recently transported from another system, it may not have been transported correctly.
  Data Source Configuration: The data source may not be correctly set up in the BW system.
  Authorization Issues: The user may not have the necessary authorizations to access the mapping or the source system.
  
  Solutions:
  
  
  Check Mapping Configuration:
  
  Go to the Data Warehousing Workbench (transaction RSA1).
  Navigate to the "Source Systems" section and check if the source system is correctly defined and mapped.
  Ensure that the data source is correctly linked to the source system.
  
  
  
  Register the Source System:
  
  If the source system is not registered, you can register it using transaction RSA1 and then add the necessary mappings.
  
  
  
  Review Data Source Settings:
  
  Check the settings of the data source in the BW system. Ensure that the data source is active and properly configured.
  
  
  
  Transport Issues:
  
  If the mapping was transported, check the transport logs for any errors. You may need to re-transport the relevant objects.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the source system and the mappings. You may need to consult with your security team to verify this.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of BW you are using for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  RSC1: Create DataSource
  RSC2: Change DataSource
  RSC3: Display DataSource
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered the same issue.
  
  
  By following these steps, you should be able to identify and resolve the cause of the RSM809 error in your SAP BW environment.