`PosPurchaseOrderLine`

One line of a vendor purchase order, as stored. The POS buys by the case: quantities count CASES (purchase units of unitsPerCase sell units each) and costs are the cost of ONE CASE, exactly as the POS stores them. The API derives nothing: no unit cost, no extended total and no outstanding quantity is computed, no sign is changed and nothing is clamped. Divide a case cost by unitsPerCase yourself if you need a unit cost.

Type: object.

Name	Type	Description
`lineId` required	string	The POS line id.
`orderedQuantity` required	number	Quantity ordered, in CASES, signed as stored (a return to the vendor is negative; a stored null reads 0).
`amount`	number	The line amount as the POS stored it (the POS stores orderedQuantity x caseCost); never recomputed.
`caseCost`	number	Cost of ONE CASE after the order's discountPercent, as stored. Not a unit cost.
`caseCostBeforeDiscount`	number	Cost of ONE CASE before the order's discount, as stored. Not a unit cost.
`costFlag`	string	The POS cost-flag letter of the line.
`description`	string	The item description on the line.
`discountAmount`	number	The line's discount amount, as stored.
`lineNumber`	string	The line's position on the order, as the POS shows it.
`noDiscount`	boolean	The line is excluded from the order's discount.
`productCode`	string	The store product code.
`receivedQuantity`	number	A received quantity (in CASES) stored on the order line. Normally absent: the POS records a receipt on the receiving document, not here, so absent does NOT mean nothing was received. Read GET /v1/receiving?purchaseOrderId= for what arrived; the API never derives it.
`receivingId`	string	The receiving document the POS stored on the order line. Normally absent, for the same reason as receivedQuantity.
`unitsPerCase`	number	Sell units in one case, as the POS copied it from the product when the line was written.
`vendorItemCode`	string	The vendor's own item code.

No other fields appear.