Hi JB_amba_01 Thanks for reaching out to us here on the Community. You could create the purchase order as you normally would, you could then create a bill payment (enter billpayment after qbo.intuit.com/app/ in the url) or create an expense, to account for the payment to your supplier, and use the creditors/accounts payable in the category column, enter the amount paid. When your stock does arrive you can then copy the purchase order to the bill, select make payment and add/link the bill payment or the expense to the bill.
Please note that as we're not accountants we recommend that you contact an accountant to qualify the above or there maybe an accountant or experienced Community member that reads this post and they're able to verify the above or offer an alternative solution.
We have also submitted your feedback to our developers and hopefully in the future they maybe able to implement a more robust stock tracking system that would enable customers to have an option to not affect the quantity on hand when copying a purchase order to a bill. I would also recommend that you leave feedback from within your product by selecting the cog/gear icon > Feedback.
