Intercompany orders

Following is the scenario:

1. Raised KD-OD order

2. Received item thru OD Order

3.Receipt matched - PV created

4.KD processed - Invoice Print done

5. Sales update completed

6. Batch posted

Now, we found around 100 KD OD orders had been duplicated.  We want to reverse both KD & OD orders.  How can we do that?

I posted this issue in Distribution but no answers....

Thanks

Vidhya