Hi,
If you are in 7.0, the Crate DTP with Extraction Mode - Delta - Get delta once and get new data request by request.
Then once request get transfer to data target - You will find all 3 request separately.
Now you delta 1st and 3rd request ad remain 2nd request.
Now in future also you want get 1st and 3rd request again to target, because you have chosen delta extraction mode Get delta once at DTP level.
- Vijay