Hi,
Don't combine and not suggestable.
Becasue thosre are not transaction datas.
one is master data and another one is transaction data.
So master data you can load master data object and transaction data you can load to dso/cube.
Later you can do reporting cube/dso directly. you may get required results.
if need master data also then you can create multi provider on cube/dso and info object.
Do the proper identification and save,actiavte multi provider.
Later you can do reporting on MP.
Thanks