Activate the App:
Navigate to the Apps module and install the "Create Purchase Order from POS in Odoo" app.

Navigate to Point of Sale >> Settings.
From the top bar, select the specific POS shop you wish to configure (e.g., Furniture Shop).

Scroll down to Purchase Order section.
Check the box labeled Enable Purchase Order Creation from POS.
Once enabled, select the desired default state from the PO State dropdown menu (e.g., RFQ).
Click Save. The "Create PO" functionality is now active for that specific shop.

Open the POS: Start a new session in your configured Point of Sale shop

Identify Stock Need: While processing a sale or checking inventory, the POS user identifies a product that is out of stock or running low.

Initiate Purchase Order: The user selects the product within the POS interface and then clicks the "Create PO" button.

Select a Vendor: A pop-up window appears for vendor selection.

If the product has pre-configured vendors, the vendor with the highest priority (first in the list) is automatically selected. Other assigned vendors are also visible for selection.

If the product has no assigned vendors, a full list of your company's vendors will be displayed to choose from.

Confirm and Create: After confirming the vendor, the system automatically creates a Purchase Order in the Odoo backend. The PO is set to the default status you configured in the settings (e.g., "RFQ"), ready for the purchasing team to process. The POS user can immediately return to their sales tasks.