How to forecast new product promotion in PTP

Dear Friends,

We have a customer who runs promotion when introducing a new product. Customer knows how this product will behave and can provide an existing item which has done similiar promotions before. Since the new product does not have any sales history, no uplift or canabalization effects will be generated. We are trying to create pseudo history for the new product by copying the old product sales history into the new product. However, since the old product had been promoted before, do we also need to copy the promotions from the old product into the new product? if that's the case, this