---
title: "OTRN V3.2 · DocumentLineReferenceType"
canonical: "https://knowledge-hub.onetrail.com/space/docs/726368341/OTRN%20V3.2%20%C2%B7%20DocumentLineReferenceType"
format: markdown
---
**Complex type** in namespace `(none)` · part of [OTRN Library V3.2](https://onetrail.atlassian.net/wiki/spaces/docs/pages/727023656)

## Diagram

![DocumentLineReferenceType diagram](media://87c7cb5b-2022-4a4e-88fb-811c32ee5f0d)

Extends [DocumentReferenceType](https://onetrail.atlassian.net/wiki/spaces/docs/pages/725450801) – inherits all its elements and adds the ones below.

## Elements

| # | Element | Type | Occurs | Description |
| --- | --- | --- | --- | --- |
| 1 | **LineNumber** | `xsd:string` | 0..1 | Reference line number. Not all sellers can register the reference line number in their back-end application(s). |

## Used by

- [ProductLineItemType](https://onetrail.atlassian.net/wiki/spaces/docs/pages/726302743) / **DocumentLineReference** [Purchase Order Confirmation V3.2]

<details>
<summary>XSD source</summary>

```xml
<xsd:complexType name="DocumentLineReferenceType">
        <xsd:complexContent>
            <xsd:extension base="DocumentReferenceType">
                <xsd:sequence>
                    <xsd:element name="LineNumber" minOccurs="0" type="xsd:string">
                        <xsd:annotation>
                            <xsd:documentation xml:lang="EN">Reference line number.
Not all sellers can register the reference line number in their back-end application(s).</xsd:documentation>
                        </xsd:annotation>
                    </xsd:element>
                </xsd:sequence>
            </xsd:extension>
        </xsd:complexContent>
    </xsd:complexType>

```
</details>