In an automotive consignment arrangement, components may be physically held near a manufacturer's production line while ownership remains with the supplying company until the agreed consumption or withdrawal event. Supply availability and legal ownership are separate facts. The business must track quantities, custodianship, usage, returns and billing so the supplier and automotive plant agree on what has actually been consumed.
Why automotive suppliers use consignment
Automotive assembly lines need small parts ready when a vehicle build calls for them. A plant may want bearings, fasteners or brackets close to its line while reducing immediate purchase-based working capital. Under an agreed consignment model, the supplier can replenish agreed stock locations while retaining ownership until the customer uses or withdraws the parts. Terms, risk and invoicing triggers depend on the contract.
Four events to keep separate
Fill-up moves components to the customer site without necessarily transferring ownership. Custody means the parts are physically at the plant or managed buffer. Issue or consumption identifies an event that may transfer ownership and create a billing obligation under the agreement. Reconciliation matches opening stock, deliveries, consumption, returns, losses and closing balance. SAP distinguishes customer consignment from vendor consignment depending on whose perspective the process serves.
Example: line-side sensor brackets
A Tier 1 supplier delivers 500 sensor brackets to an assembly plant's consignment area. The plant records 120 brackets as consumed during the next production period. In a simple illustrative reconciliation, 380 remain before further deliveries, returns or adjustments. The supplier may invoice the 120 consumed units if the contract treats that withdrawal as the ownership-transfer event; the original 500-piece shipment alone should not automatically be treated as a normal sale.
Who owns the controls?
Procurement and supplier management define commercial terms. Warehouse personnel record receipts, movements and physical counts. Production confirms consumption. Finance reconciles ownership, valuation, accruals and settlement. Supplier/customer interfaces must agree on part numbers, units of measure, reporting cutoffs and exception handling. A late consumption message can create timing differences even when physical stock is correct.
What can go wrong?
Shortages, damaged stock, changed engineering revisions, quality holds and returns all complicate a seemingly simple stock balance. A bin label cannot establish legal title by itself. Teams need rules for mixed supplier stock, unrecorded withdrawals and aged slow-moving material. The exact accounting and posting behavior must be validated against the selected SAP deployment and signed consignment agreement.
Consultant questions
Is the business supplier or customer in this transaction? Which event triggers settlement? Where are consignment balances reported? How are discrepancy tolerances and damaged units handled? What happens if parts become obsolete after a design change? Build the process map around these decisions before discussing document types or system configuration.
Related Knowledge
Explore manufacturing subcontracting, automotive supplier scheduling, handling units for connected decisions. Return to Industries.