A. Define the recipients for the flexible workflow in the Manage W orkflows for Purchase Orders SAP Fiori app

B. Activate the flexible workflow for purchase orders in Customizing

C. Create a class with flexible workflow characteristics for purchase orders

D. Deactivate the classic release procedure for purchase orders in Customizing

E. Set up the preconditions for the flexible workflow in the Manage W orkflows for Purchase Orders SAP Fiori app