> ## 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.

# UpdateSalesOrder

> Modifies an existing sales order.

If a request with this mutation's Idempotency-Key was already completed, the response's `extensions` contains an `idempotency.{responseName}` entry with `wasReplayed: true`.



**mutation** `UpdateSalesOrder(request: UpdateSalesOrderCommandRequestInput!): UpdateSalesOrderCommandResponse!`

## Arguments

**`request`**: `UpdateSalesOrderCommandRequestInput!` (required)

## Returns

`UpdateSalesOrderCommandResponse!`

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

Unique ID of the modified sales order.