> ## 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.

# SalesInvoiceSalesOrderReference

> A sales order an invoice was created for. A partial invoice names the same order as other invoices; an invoice created for several orders names all of them.



**Kind**: `object`

## Fields

**`salesOrderId`**: `ID!`

The ID of the sales order.

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**`salesOrderNumber`**: `String`

The number of the sales order.