Contract packaging: agree how startup losses and line approval affect the quote

A contract-packaging quote should identify what counts as an accepted finished unit and what happens before routine production begins. Machine setup, trial material, sample approval and rejected output can consume customer product and packaging without producing units that may be shipped. If those activities are left implicit, the final invoice becomes an argument about whose loss the material represents.

Record the approved product and packaging specifications, artwork revision, sample requirements and authorized approval roles. A sample accepted for visual appearance may not establish that every required performance check is complete. Keep commercial approval connected to the quality process required for the actual product rather than treating a customer's informal email as permission to bypass it.

ISTA's guidance explains that changes in products, packaging or processes can require packaged-product retesting when performance may be affected. That supports an explicit change review. The applicable test and release requirements must come from the qualified team and agreement; this cost model does not prescribe a test protocol or imply that one approved sample validates every later change.

Express startup consumption as a defined quantity or approved actual cost, and state the assumptions. A fixed allowance might cover one setup using an approved film and product combination. It should not silently cover repeated trials caused by revised artwork, substitute material or a different fill specification. Conversely, an allowance is not proof that every unit within it was necessarily lost.

Track routine production loss after release separately from setup consumption. The reasons may include line adjustment, damaged components, quality rejection or handling errors. A single scrap percentage applied to every activity can hide a setup problem when the accepted run itself performs well, or conceal poor production yield behind a generous startup allowance.

Define the ownership and return treatment of unused product, packaging and rejected units. Customer-supplied material can have a value far beyond the packer's conversion fee. The record needs both physical quantities and the agreed basis for charging or crediting loss, without assuming custody alone establishes who bears the cost.

Suppose a hypothetical customer supplies 10,500 product units for an order requiring 10,000 accepted packed units. The signed run sheet authorizes 180 units for startup trials. During production, another 120 units are rejected under the documented quality process. The final accepted output is 10,000, and 200 unused product units remain for return or another approved disposition.

The physical bridge is 10,500 received minus 180 startup units minus 120 production rejects minus 10,000 accepted units, leaving 200. Do not describe all 500 nonshipped units as waste. Two hundred remain usable in the scenario, while the 300 consumed or rejected units require their own evidence and commercial treatment.

Assume a quoted setup fee of $600 and conversion charge of $0.42 per accepted unit. The packer's fee is $4,800 before any approved extras. If the agreement separately values customer product loss at $3 per unit, the 300-unit physical loss has a $900 value, but who bears that amount still depends on the agreed allowance and responsibility. The inventory bridge alone does not authorize a deduction from the invoice.

If the initial trial does not meet the approved criteria, stop and identify the cause through the quality and operating process. Record the material lot, equipment settings where relevant, observed failure and the proposed next step. Continuing through more customer material without a defined authorization can enlarge the commercial dispute while producing no useful output.

Cost the next attempt before agreeing to it. Suppose an additional trial would use 100 units of product at the example's $3 value, $80 of packaging and two paid operator hours at $35. The immediate modeled cost is $450, excluding any additional machine time or test charges. Identify which costs the proposed change actually creates and who has authority to accept them.

Distinguish a customer-requested specification change from a packer correction of an agreed process. The commercial response may differ, but neither party's label is enough. Preserve the version history, trial evidence and agreed resolution. Any cost recovery should follow that record, not a retroactive assumption that all startup failures belong to the customer.

Conversion can be priced per input unit, accepted unit, case, hour or batch. State the unit in the quote and compare it with the run report. A rate per accepted unit already leaves rejected output outside that unit count; charging a second full conversion fee for rejected units needs a separate contractual basis.

A delayed approval can also occupy scheduled line time. Estimate whether the delay prevents another booked run, merely shifts work within available capacity or creates paid overtime. Do not automatically value every waiting hour at the line's retail billing rate. Identify actual additional costs and any supported contribution lost from displaced work.

Where the schedule is uncertain, use an explicit approval deadline and rescheduling process that the parties accept. A customer should know which materials and decisions are needed before the reserved run. The packer should disclose the practical consequence of a late change while preserving the product's required release controls.

Match accepted units to dispatch, unused material to return records, and rejects to their authorized disposition. Reconcile packaging components independently when a finished unit consumes more than one component. A label shortage cannot be explained merely by proving the correct number of product units was shipped.

Then bridge the invoice from setup, accepted conversion units and approved extras. Attach any agreed loss credit or charge with its basis. Carry unresolved material or claims as visible open items rather than forcing the invoice and physical stock to agree by changing a quantity.

Use the completed run to revise the next quote's startup assumptions for the same approved configuration. Keep exceptional change trials separate from routine performance. That gives future pricing an observed basis while preserving the evidence for any material, process or specification change that makes the next run different.