Hi,@Paras1.

Thank you for reaching out to us and for allowing us to assist you with your concern about purchase order.

 A purchase order will remain open when it isn't linked to a bill. Let me show you how to close or change its status:

1. Go to the Inventory menu.
2. Then select Purchase Order Management Worksheet.
3. Select the PO Progress tab.
4. Select the purchase order you want to update.

You can also maximize the first answer in this article: Purchase order and bill. From there, you'll be able to link a purchase order to a bill.

Please let me know if I can be of any additional assistance. Stay safe and have a wonderful day!