---
title: Use purchase order line mapping
description: Use the purchase order line mapping skill to automatically map invoice lines to purchase order lines and reduce manual matching effort.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/source-to-pay-operations/accounts-payable-operations/use-purchase-order-line-mapping.html
release: australia
product: Accounts Payable Operations
classification: accounts-payable-operations
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
keywords: [APO, Accounts Payable Operations, purchase order, invoice lines, PO, Now Assist]
breadcrumb: [Use ServiceNow Otto for Accounts Payable Operations \(APO\), ServiceNow Otto for APO, Accounts Payable Operations, Finance and Supply Chain]
---

# Use purchase order line mapping

Use the purchase order line mapping skill to automatically map invoice lines to purchase order lines and reduce manual matching effort.

## Before you begin

Role required: admin

## Procedure

1.  Activate the purchase order line mapping skill.

2.  Navigate to **All** > **Accounts Payable Operations** > **Properties**.

    The Now Assist skill evaluates and executes rules on the invoice lines and performs the invoice line mapping with purchase order line mapping. For more information on setting APO properties, see [Set APO properties](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/accounts-payable-operations/set-apo-properties.md). In the playbook, the match lines card allows you to review the mapping performed by Now Assist. For more information on the match lines card, see step 7 of [Using Playbook in Accounts Payable Operations](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/accounts-payable-operations/how-to-use-playbook.md).


## Result

The Now Assist skill maps the invoice lines with purchase order lines.