---
title: Ensure consistent invoice spend categories during PO matching
description: Maintain aligned spend categories when matching invoice lines with purchase order lines by applying the spend category from the PO line to the corresponding invoice line.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/source-to-pay-operations/sourcing-and-procurement-operations/invoice-po-spend-categories.html
release: australia
product: Sourcing and Procurement Operations
classification: sourcing-and-procurement-operations
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Automatically assign categories, Explore ServiceNow Otto for SPO, ServiceNow Otto for SPO, Sourcing and Procurement Operations, Finance and Supply Chain]
---

# Ensure consistent invoice spend categories during PO matching

Maintain aligned spend categories when matching invoice lines with purchase order lines by applying the spend category from the PO line to the corresponding invoice line.

The Spend categorization agent maintains consistent spend categories when matching invoice lines \(IVLs\) to purchase order lines \(POLs\).

During matching, the spend category from the PO line is applied to the corresponding invoice line. If the PO line does not have a spend category, the invoice line remains uncategorized.

For older invoice lines created before SPO installation, the system generates updated predictions to populate missing spend categories.

**Parent Topic:**[Automatically assign categories during SR and PR creation](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/sourcing-and-procurement-operations/automatically-assign-categories.md)