Thank you very much for your review. I am unsure what you mean by this however, if you are referring to your NI Parcels order number, this is the number that we use to trace your order on our internal systems. The Parcelforce tracking number is generated when your booking with us is processed through the courier's system, so that you may track your item during transit and so that they may also trace your item on their internal systems. We hope this helps. If you have any further questions, please do let us know and we will be more than happy to help.