Hi Vadim,
we are using BPC 10.0 NW version.
Data flow Process as below.
1. User enter the values for Accounts (" ABC Account , "BCD Account"......) in Input schedule and run the Data Manager packages.
Ex: ABC Account -- 100
BCD Account -- 120
After DM package run ---> 220
2. After some time He may want to change the value for only ABC Account(not for all other Accounts) due to some business requirements and run DM Package again to post the values in "XYD Account".
after running 2nd time DM package it is calculating all values again adding