Hi,
if you want historical data for added info object at cube level then you better delete and reload the whole data.
Not sure why your doing selective deletion?
for historical data, delete and reload is mandatory at cube level.
How to load full load to cube and delta settings.
1. Delete delta settings between DSO to cube.
2. Delete whole data from cube
3. Load full load to cube thru full dtp from active table
4. Run init delta and set delta pointer between dso and cube thru dtp.
5.create delta dtp between dso to cube.
before doing above settings, you need to stop your schedule load to the same dso or data flow.
After the above steps you can your delta info pack --->delta dtp(dso)-->delta dtp(cube).
Thanks