Sage 50 Cloud Accounts- Is it possible to include two stock code/part numbers on an invoices?

SOLVED

Hi

We have our own stock codes that we use for all the products we sell and these are shown on the invoices. However, one of our customers has asked us to also show their own part number for the same item on all our documentation to them. Just so they can easily track the goods they have ordered/received. I've done a lot of googling but i cant see a way that we can show both our and our customers part numbers on the same invoice.

Is it because of the type of sage we are using? Is it possible if we upgraded (not that we want to)?

Thanks

Katie