Hi R B,
If your generic data source have the feilds to enable delta or not. check that one. if not there date field then always load data thru full mode upto DSO. form DSO to cube you can use delta dtp.
DSO have overwrite functionality. that would be useful.
if data source was possible to enable delta setup then as usally make init without data transfer(upto today you may be loaded thru full load). by doing init delta pointer will be enabled at RSA7(ecc side).
run delta info and pack and dtps further.
While setting delta setup for generic data source, choose the right method(time stamp and use safety limits).
Thanks