> ## Documentation Index
> Fetch the complete documentation index at: https://developer.jtl-software.com/llms.txt
> Use this file to discover all available pages before exploring further.

# IncomingInvoicePurchaseOrderAssignmentInput

> A purchase order whose open lines become line items of an incoming invoice.



**Kind**: `input`

## Fields

**`purchaseOrderId`**: `ID!` (required)

The purchase order. Must belong to the supplier of the invoice and be at least in processing.

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**`quantityBasis`**: `PurchaseOrderQuantityBasis`

Which quantity becomes the quantity of the new line items. Defaults to Ordered.