MTS 303 · PRACTITIONER PROCESS MAP
How does Make to Stock execute in SAP?
A practitioner-provided view of Make-to-Stock execution from production-order creation and release through material issue, inspection, confirmation, finished-goods receipt, accounting postings, and settlement.
READ THE PROCESS
The diagram starts after the most important MTS decision
The production-order flow is the execution core, but MTS begins earlier: an approved forecast and stocking policy become planned independent requirements, MRP nets them against available supply, and a planner decides which proposal should become executable production.
Decide what deserves stock
Forecast, service target, safety stock, consumption behavior, horizon, lot size, shelf life, and obsolescence exposure define the inventory risk accepted before an order exists.
Turn the net requirement into feasible supply
MRP creates dated proposals after considering stock, receipts, requirements, lead times, lot sizing, and procurement type. Conversion firms quantity and dates into a production order.
Replace assumptions with shop-floor evidence
Release, component availability, goods issue, operation confirmation, inspection, and finished-goods receipt progressively update status, quantity, dates, inventory, and actual cost.
Prove the stocking policy worked
Customer demand consumes forecast where configured and draws from common stock. Fill rate, shortage, excess, coverage, forecast error, and variance feed the next planning decision.
COMMON PP SPINE
Four foundations explain the production result
When the order behaves unexpectedly, locate whether demand, engineering data, execution evidence, or stock and cost closure first became unreliable.
Forecast and consumption
Confirm the planning strategy, requirements, horizon, version, consumption mode, and forecast ownership.
Explore forecast demand →SUPPLYMRP and replenishment
Trace stock, receipts, shortages, dates, lot sizes, firming, exceptions, and proposal conversion.
Explore MTS planning →EXECUTIONOrder structure and status
Reconcile BOM, routing, work center, production version, operations, components, confirmations, and movements.
Explore production →OUTCOMEStock, service, and variance
Connect available stock and customer service to inventory value, coverage, excess, scrap, and production variance.
Explore inventory control →THE STRATEGY BRANCH
MTS is not one forecast behavior
The stocking decision remains common, but the relationship between forecast and actual customer demand changes planning, consumption, excess risk, and exception ownership.
QUANTITY AND VALUE HAND-OFFS
Execution creates four different kinds of evidence
Order status alone does not prove inventory or cost closure. Reconcile material quantities, operation activity, received output, period-end calculation, and settlement separately.
Confirm movement, batch or serial data, quantity, valuation, reversal status, reservation, and order assignment.
Confirm operation, work center, activity quantity, rate basis, partial or final status, backflush, and correction history.
Confirm material, plant, storage and stock type, quantity, valuation, inspection, order delivery status, and reversal behavior.
Confirm status, cutoff, target cost, variance categories, settlement rule, account determination, ledger posting, and zero-balance expectation.
PRACTITIONER VIEW
What to watch beyond the happy path
A strong MTS review follows both the replenishment loop and the inventory consequence.
Demand quality
Bias, seasonality, promotions, missing history, frozen horizons, overrides, and ownership can create supply before production ever sees an order.
Master-data feasibility
Procurement type, lead time, lot size, BOM validity, routing, work-center capacity, production version, and component availability must describe the same operating reality.
Execution differences
Late issues, excess consumption, substitutions, yield loss, scrap, rework, partial confirmations, quality stock, and reversals change future availability and order cost.
Inventory learning
Fill rate, shortages, slow movement, excess, shelf life, blocked stock, turns, coverage, and variance determine whether the strategy should be adjusted.
WHEN THE CHAIN BREAKS
Start with the last trustworthy planning or execution event
Do not correct a production symptom until demand, supply, status, quantity, and value have been traced in sequence.
Did MRP see a net requirement?
Check active demand, planning file, plant and MRP area, stock and receipts, MRP type, procurement type, lot size, dates, firming, planning scope, and run log.
What readiness evidence is missing?
Check BOM and routing validity, production version, components, capacity, inspection, release checks, status, confirmations, reservations, delivery tolerance, and technical completion.
Which quantity or value event differs?
Compare issues, reversals, confirmations, scrap, receipts, stock type, target and actual cost, WIP, variance, settlement rule, account determination, and receiver posting.
Connect the practitioner flow to the configuration decisions, dependencies, transport boundaries, and end-to-end proof required to make it work.