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Create Bill

POST 
/api/purchase-orders/:purchase_order/bills

Create a landed cost bill linked to this purchase order.

Required scope: purchase-orders:write

Grant this scope to your token under Settings → Developer → Personal Access Tokens.

Authentication: Requires Bearer token.

Line descriptions must be unique within a bill. Two lines on the same bill cannot share a description, and the comparison ignores letter case — "Freight" and "freight" collide. A duplicate is rejected with 422 before anything is saved.

Allowed proration_strategy values: cost_based, quantity_based, weight_based, volume_based, specific_line, revenue_based, manual, duty_estimate_based. duty_estimate_based ("By estimated duty") splits the bill across purchase order lines in proportion to each line's estimated customs duty — the duty frozen at receipt, or the shipment-stage estimate for units not yet received. If every covered line's estimated duty is zero it falls back to cost_based and the bill response carries an allocation_warnings entry with code duty_estimates_zero_fallback. A weight_based, volume_based or cost_based bill whose basis is zero on every line it covers (no weights, no dimensions, no cost) is split by cost (or by quantity when cost is zero too); each allocation's proration_strategy records the basis actually used, and the bill carries an allocation_warnings entry with code proration_basis_fallback.

Request​

Responses​

OK

Response Headers
    Content-Type