In some scenario's, an order is placed for a customer in POS and the cashier wants to order the items directly from the vendor instead of using store inventory. At the moment, creating a purchase order for a sales order is only possible in the back office. It would be a great advantage if this could be done in POS as well.
Under Review
Ideas Administrator

Thank you for the product suggestion! This feature is already on our backlog. We will continue to monitor the votes and feedback to determine its prioritization in our future releases. - Boyce Zhu, Principal Product Manager, Dynamics 365 Commerce