# BT-150 — Item price base quantity unit of measure

> https://billhorse.com/en/terms/bt-150/

The unit code for the price base quantity (BT-149); it has to match the invoiced quantity's unit (BT-130). Like BT-130 a unitCode attribute per UN/ECE Rec 20/21.

## Where does it live in the XML?

- UBL: `cac:InvoiceLine/cac:Price/cbc:BaseQuantity/@unitCode`
- CII: `ram:NetPriceProductTradePrice/ram:BasisQuantity/@unitCode`