Wrongly agreement items determination in Freight Orders

Hi Experts,

I have created a freight agreement-FA with two items: Item 1 for Pre Carriage and Item 2 for On Carriage.

Each Item Type has defined with own sets of Calculation Sheet and Stage Type (Pre or On).

For On Carriage created with FO in the FWO.

But while performing with charge calculation for FO-On Carriage, it is taking Calculation Sheet Pre Carriage and rate tables instead the other one.(TCCS for On Carriage)

So i am unable to perform the charge calculation.

Thanks,

Kumar