Explanation
You can perform an item-wise release in the flexible workflow for purchasing for a purchase requisition. A purchase requisition is an internal document that requests the procurement of a material or service. An item-wise release means that you can release each item in a purchase requisition separately according to different criteria such as amount, material group, or plant. References: SAP S/4HANA Sourcing and Procurement | SAP Learning, Course S4520, Unit 1, Lesson 1.