export and import process - to populate baseline data into future horizon

Hi All,

we are exporting 3 series of FY15Q2 and importing into FY15Q3.

Out of 3 series, 2 series data we are moving from Approved series of FY15Q2 to Current Series of FY15Q3. and more of less these are matching between quarters.

One series, we are copying directlry FY15Q2 Approved FCST to FY15Q3 Apporved FCST series, observed the data is not matching between FY15Q2 and FY15Q3. Could you please help up what might be the reason here. And this mismatch is more than 20% also.

steps followed:

1) export to materilized view via export workflow

2) Incremented the sdate to suit the next quarter, and pushed to data to import table