Settlement issue in PM order w.r.t Quantity

All,

I have a PM order which has a material and the actual cost is settled.

The material has the UoM conversion like below,

The PO is created against the PM order and the above material is included as line item as Po Qty as '1' and PO Order UoM as 'MON' (Month). Even the GR and IR happened as in month.

Now thw actual cost goes to PM order and when the order settles as for as the cost looks good. However the Qty is posted as 720 hrs which we don't want it. It has to settle in Month only as '1 Month' and it is affecting the budget.

How to Control it and where the changes has to be done?

Thanks.

Prabu Kaliappan