Hi Sebastian,

What you’re describing is a common retail use case: selling the same item either individually or as a multi-pack/box while keeping stock deducted in units.

In Odoo POS there are a couple of ways to handle this:

1. Use Units of Measure (UoM)

• Go to Inventory → Configuration → Units of Measure.
• Define two UoMs:
  • “Unit” (reference)
  • “Box of 12” (with ratio 12 = 1 box → 12 units).
• On your product, set the base UoM as Unit, then add the alternative UoM Box of 12.
• In POS, you’ll then be able to sell either 1 Unit or 1 Box, and stock will always be reduced correctly in units.

2. Use Product Packaging (alternative)

• On the product form, go to Inventory → Packaging.
• Create a packaging called “Box of 12” linked to 12 units.
• In POS, when you scan the packaging barcode or select that packaging, it will automatically add 12 units of the same product to the order.

- Best practice:

If you want the cashier to clearly choose between “Unit” and “Box of 12” in the POS screen, go with UoM configuration. If you prefer to handle it with barcodes, then set up Packaging and print barcodes for each packaging type.

That way, you don’t need to duplicate the product — inventory is always tracked in the smallest unit, and Odoo takes care of the conversion.

Hope this helps..