PP order settlement Issue

Hello Experts,

Issue during settlement of PP order:

Order created on 30th oct-15 and confirmed by 30th October-15

TECO also done on 31st Oct only.

but while checking variance in KKS2 in period 7 (i.e. oct'15) order is not showing any variance

but if I m selecting period 8 i.e. November-15,  its showing variance values.

kindly suggest why this issue is coming

Regards

PK Sahu