Purchase orders are supposed to be valid; otherwise, there may be issues that will be harder to resolve. You need to make sure that the orders come from actual people or companies who will truly pay for the products that have been ordered.
It will also be important to do an inventory of the products that have been ordered and the number of products that are still available just to be sure that there will be enough for people’s orders. There is always a risk that companies will become victims of fraudulent financial practices, so you need to make sure that you will do the necessary audits so that you will not become a victim.