If we want to see, per datasource/transfer structure, to which BW infoobject the R/3 field is mapped,
we can be viewed by using RSTSFIELD table.
Goto RSTSFIELD table.
Provide the Source System name and R/3 field (for ex : MATNR) in “LOGSYS” and “FIELDNM” fields and Execute
In the below output screen we can see that R/3 field “MATNR” is mapped to infoobject “0MATERIAL” within several transferstructures/datasources.