Sales order with reference to another Sales order

Hi SAP Gurus,

Good day.

I would like to seek an advice from u regarding this scenario:

First if all, is this scenario possible-create sales order w/ reference to another sales order?

We have a scenario wherein the original sales order has a material w/ free goods. And then when we create another sales order w/ ref to that iriginal sales order, the free goods appeared twice.

Original SO:

Item. Material. Qty. item cat

10. 123. 5. ZOR

20. 123. 1. ZORR

SO w/ ref to above orig SO:

Item. Material. Qty. item cat

10. 123. 5. ZOR

20. 123. 1. ZORR

30. 123. 1. TANN

Item 30 should not appear since our goal is to copy exactly what was on the original sales order.

I have checked the item cat and copy control & seems it is correct.

Please advice

Thanks,

Erza