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Ramp: Add line items to an existing purchase order — request body — body

Add line items to an existing purchase order: request body, field body. Complete fields and constraints for contract 2026-10-27.

API reference · Contract 2026-10-27

SDK schema: Add line items to an existing purchase order — request body — body

FieldTypePresenceDescription and constraints
$objectRoot
line_itemsarrayRequired within parentList of line items to add to the purchase order. Existing line items attached to the purchase order won’t be modified
line_items[]ModelEach itemExpand Create a purchase order — request body — body line items item

Referenced models: Create a purchase order — request body — body line items item

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