Diagnosis
Source system &V1& is not known.

System Response
The imported data for DataSource &V2& was deleted again because thereferenced source system does not exist and no mapping is defined intable RSLOGSYSMAP on an existing productive source system.

Procedure
Create the referenced source system in the Data Warehousing Workbench ordefine mapping to a known source system in table RSLOGSYSMAP.
You get to maintenance using Tools -> Conversion of the logicalsystem names.