Maintain PIRs
Application component: Fiori UI for Material Requirements Planning
App type: Transactional
Line of business: Supply Chain
Leading industry: Cross Industry
Solution capability: Material Requirements Planning (S/4 CLD)
Scope items: Demand-Driven Buffer Level Management|Production Operations with SAP Manufacturing Execution|Make-to-Stock with Silo Material - Process Manufacturing|Make-to-Stock Production - Repetitive Manufacturing|Make-to-Stock Production - Discrete Manufacturing|Scheduling Agreement for Subcontracting Procurement|Scheduling Agreements in Procurement|Material Replenishment with Kanban - External Procurement|Make-to-Stock - Process Manufacturing Based on Process Order|Production Capacity Evaluation|Make-to-Order Production - Semifinished Goods Planning and Assembly|Predictive Material and Resource Planning|Material Requirements Planning
Description:  You can use this app to create and monitor planned independent requirements (PIRs) of materials in months or weeks. You can use this information to negotiate rates with your suppliers and, as a result, reduce costs. You use PIRs to procure or produce materials or components prior to receiving sales orders for materials. This information is particularly important, if the lead times demanded by your customers are shorter than those to which your suppliers can commit. 
A Fiori Application for Production Planner that helps to efficiently maintain multiple demand forecast values as input to MRP.
Key features:  You can perform the following tasks:  Sort and filter the list of materials based on various filters such as reach, accuracy, plant, active version, period indicator   Determine the reach of your PIRs and find materials with an insufficient reach   See how accurate your PIRs are for each period   Create additional PIR versions for each material   Change a PIR version to active or inactive    Mass maintain your PIRs   Allows usage of multiple PIRs with the same key fields Material, Plant, MRP Area, Version and Requirement Type by assigning a requirement plan   Use Microsoft Excel files using the comma-separated value file format (.csv) to maintain PIRs.  Recommendation If you use mass maintenance, we recommend that you do not edit PIRs for more than 10.000 materials at the same time. 
Business roles: Production Planner| Material Planner - External Procurement
Material Planner - External Procurement: (is an add-on role to the Material Planner)
Ensures the availability of materials for production supply plans and monitors and adjusts material supplies procured externally. Collaborates internally with production planners and externally with suppliers.

Production Planner : 
Plans, monitors and adjusts material supplies produced internally and ensures material availability for sales order fulfillment and production supply. Collaborates internally with customer care and other production planners.

Replenishment Specialist - Distribution Center (Retail) : 
Is responsible for the automated replenishment of retail distribution centers with merchandise. Reviews calculated quantities and delivery schedules. Monitors and analyzes service levels, stock development and out of stock situations.