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This page explains why Material Ledger must be made productive using production startup for consultants, architects, and anyone responsible for valuation readiness in S/4HANA. In short, production startup is SAP’s final consistency check that confirms a plant is safe to start valuating stock. It matters because once a plant is productive, valuation becomes real, permanent, and historically binding. Use it when a plant is ready to go live with inventory, and avoid it until every prerequisite is correct.
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Up to this point, everything has been preparation.
Currencies were defined.
Rules were assigned.
Material Ledger was activated.
Price determination was fixed.
But SAP still does not trust the plant.
Production startup is the moment SAP stops asking questions and starts enforcing reality. It checks that every valuation dependency lines up: currencies, material types, price determination, valuation areas, and historical consistency. Only when all checks pass does SAP allow the plant to become productive.
This is not a technical step. It is SAP’s way of saying:
“I am now willing to remember everything you do here.”
Production startup (Material Ledger) is the step that makes valuation active and irreversible for a plant.
Productive means SAP will permanently record valuation data for all stock movements.
Consistency checks are SAP’s validations to ensure valuation rules do not contradict each other.
In plain English: production startup tells SAP that the plant is ready to handle real inventory without breaking accounting.