Can't we use Delta Init to load historical data??

Hi BW Experts,

Cant we use Delta Init to load historical data and proceed with the deltas there after?? What is the maximum period of historical/normal data that we could load using Delta Init??

My confusion is When and where we exactly use Full upload to load historical data as we cannot do the Dalta init (though we have an option to convert our full uploads into repair full requests to proceed on with the delta inits).

If the option Full Upload is used only to load Historical data if we dont need any delta inits and deltas further ( or to load only the archived historical data?? from source??)

Plz clarify!!

Thanks and no issues in awarding points.

Sapster!!