MTS 202 ยท CALCULATE
How does MRP calculate stock replenishment?
MRP nets forecast requirements, inventory, receipts, safety stock, lead times, and lot sizes to identify shortages. MRP establishes material coverage and dated supply proposals; capacity planning and scheduling determine whether that supply can be executed as planned.
READ THE CAPABILITY
Forecast and actual demand becomes an explainable MTS decision
PIRs, customer demand, safety stock, and dates express what common stock must cover. On-hand stock, receipts, and existing proposals show what is already available or expected. MRP exposes shortages and creates supply proposals for the uncovered quantity and date.
CAPABILITY MODEL
Understand the input, decision, and result
Keep demand, supply, availability, and policy distinct before changing a control.
Forecast and actual demand
PIRs, customer demand, safety stock, and dates express what common stock must cover.
Stock and expected supply
On-hand stock, receipts, and existing proposals show what is already available or expected.
Dated replenishment
MRP exposes shortages and creates supply proposals for the uncovered quantity and date.
OPERATIONAL FLOW
How the capability performs
Follow the business decision through its planning and execution evidence.
Collect requirements
Read forecast, customer demand, safety stock, and dependent demand in the planning scope.
Balance the position
Compare requirements with stock, receipts, lead times, and existing supply across time.
Create replenishment
Turn the uncovered quantity into a planned order or purchase requisition for review.
Test feasibility
Keep material, capacity, sourcing, and scheduling assumptions visible before execution.
DESIGN & CONTROL
What shapes the result
MRP type, lot-sizing procedure, safety stock, procurement type, planning time fence, and scheduling parameters shape proposals.
Policy and master data
Material, plant, strategy, dates, planning scope, and valid master data establish the intended MTS behavior.
Planning and execution rules
Consumption, ATP, MRP, sourcing, scheduling, confirmation, and stock-status rules determine the resulting signal or movement.
Ownership and timing
Planner, production, warehouse, Sales, and Finance responsibilities must be clear at each hand-off and period.
DIAGNOSTIC EVIDENCE
What proves the result?
Use the demand signal, planning position, execution record, and customer or inventory outcome together.
PIR, customer demand, safety stock, dates, and dependent requirements.
Stock, scheduled receipts, firmed proposals, and material-location-time position.
Shortage, exception, proposal quantity, proposal date, and MRP run evidence.
MTS SCENARIO
Stock covers part of the forecast, but the remainder is due before the next receipt.
MRP nets the position and creates only the uncovered replenishment proposal, allowing the planner to review timing and capacity before conversion.
- Shortage is dated
- Existing supply is counted
- Only the gap is proposed
- Feasibility remains visible
Connect this capability to the complete execution and integration story.