Ramp: Update a bill — request body — body line items array item

Update a bill: request body, field body / line_items / array / item. Complete fields and constraints for contract 2026-10-27.

API reference · Contract 2026-10-27

SDK schema: Update a bill — request body — body line items array item

Field	Type	Presence	Description and constraints
`$`	object	Root
`accounting_field_selections`	array	Optional
`accounting_field_selections[]`	Model	Each item	Expand Create a bill — request body — body accounting field selections item
`amount`	JSON	Required within parent
`amount (oneOf 1)`	string	Alternative	Format: decimal
`amount (oneOf 2)`	number	Alternative
`id`	JSON	Optional
`id (anyOf 1)`	string	Alternative	Unique identifier of an existing line item on this bill. When provided, the updated line keeps this identifier; when omitted, a new identifier is assigned. Default: null Format: uuid
`id (anyOf 2)`	null	Alternative
`memo`	JSON	Optional
`memo (anyOf 1)`	string	Alternative	Default: null
`memo (anyOf 2)`	null	Alternative
`purchase_order_line_item_id`	JSON	Optional
`purchase_order_line_item_id (anyOf 1)`	string	Alternative	Unique identifier of the purchase order line item to match this bill line item to. Default: null Format: uuid
`purchase_order_line_item_id (anyOf 2)`	null	Alternative