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

RSM809 - Overview

• 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.

RSM809 - Details

• 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