1. SAP S/4HANA Help Portal
Item Category Determination: "The system determines the item category in the delivery based on the delivery type
the item category group of the material and the item category of the higher-level item..." This documentation explicitly lists the three correct factors. (Path: SAP S/4HANA -> Sales -> Basic Functions and Master Data in SD Processing -> Item Categories -> Item Category Determination).
2. SAP S/4HANA Learning Journey
S4600 - Business Processes in SAP S/4HANA Sales: Unit 5: "Sales Document Customizing"
Lesson: "Item Category Determination". This module details the configuration for item category determination
specifying the combination of Document Type
Item Category Group
Item Usage
and Higher-Level Item Category as the key fields. The delivery item category determination follows this principle
using the Delivery Type as the document type.