正解:D
Explanation
You can configure the workflow for purchasing for a purchase requisition. A workflow is a sequence of tasks that are performed by different agents according to predefined rules and conditions. A workflow for purchasing can automate and streamline the approval process for a purchase requisition, which is an internal document that requests the procurement of a material or service. References: SAP S/4HANA Sourcing and Procurement | SAP Learning, Course S4520, Unit 1, Lesson 1.