Delta loading and Process chain BI

Hi experts,
Two Issues.
1)As i am loading FI data into dso through a process chain which includes Start process>Delta infopackage(which gets data upto psa)>Delta dtp-->Datastore activation.
But infopackage is picking up deltas but DTP is picking up all the previous records plus deltas.
100 records  -- 1st day throught Intialization of Delta with Data Transfer
2 delta records  --   2nd day
But DTP is picking up 102 Records on the 2nd Day, which means it is also  picking the old records as well.
The DSO must have just 102 records but it is having 202 records.
2) A process chain in running daily as scheduled , but I rescheduled with new scheduling options without deactivating the Process chain.
My Question is
Will the Process chain run for the OLD and the New Schedule or
Is it going to run for new schedule or old one?
or
will I face any Problem because I did not deactivate and made changes to the Change.
Please help me in this matter.
Thanks in advance.
Bhadri.

First query:
I believe that u have used FUll update type DTP is instead of the Delta DTP.. Please cross check the Update mode of the DTP once.
To resolve this issue, delete the total content of the DSO as u have Init and delta loads in PSA. And then using the Delta DTP of the Process chain, load the data. It will extract the total cotent what ever is there in PSA, and later the same DTP will act as the Delta type  and will pick the data from the New request of the PSA.
Second Query:
Its always suggested to deschedule the process chain before changing the schedule timings. When ever u do this type of scheduling, just check how many number of JObs available in Schedule mode, if u can see more than one, then delete the older one and keep the new one as it is.
But I always suggest you to deschedule the process chain and reschedule  PC with the new timings and then activate the same.
Thanks
Assign points if this helps

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