Your First Forecast Is a Boundary, Not a Bet

The co-packer wants a run size, the buyer wants an in-stock date, and the shelf-life clock starts as soon as product is made. You have no reorder history to lean on, but the decision cannot wait for cleaner data. Order too little and the launch goes empty before replenishment arrives. Order too much and cash sits in finished goods that become harder to sell every day.

With no history, the forecast is not a promise. It is a boundary around how much risk the first run is allowed to carry.

No History Does Not Mean No Inputs

A new product has no velocity history, but it still has operating facts. You know which doors are committed, how many cases each opening order requires, what inventory must cover samples and replacements, how long another run takes, and when the product stops being commercially useful. Those facts are not a demand forecast yet. They are the frame that keeps the forecast honest.

Separate facts from enthusiasm. A signed order is different from a buyer conversation. A confirmed launch date is different from a hoped-for reset. Inventory already allocated to an account is different from inventory that needs a home. When all of those inputs sit in one optimistic total, the first run quietly becomes a bet on every good outcome arriving at once.

Build From Doors Back to Production

Start at the shelf. List the doors that will actually receive product, the opening quantity for each, the case pack, and any inventory required outside retail. Then add only the replenishment you need to bridge the time until another production run can arrive. This turns a vague sales goal into units with a destination.

The same exercise exposes the floor. If the co-packer’s minimum is above the inventory required for committed distribution and the replenishment bridge, the difference is not forecast demand. It is exposure created by the production constraint. Name it that way. You can then decide whether to accept it, renegotiate the run, stage the launch, or find another production path.

Keep Launch Fill Separate From Reorders

Opening orders can make demand look stronger than it is. A shelf has to be filled before a shopper can buy from it, so the first shipment includes inventory that will not repeat on every order. Treating that fill as recurring movement produces a run plan that grows faster than the shelf can consume it.

Track launch fill and expected replenishment as separate lines. The first tells you what must be placed. The second tells you what might move after placement. When reorders begin, replace the assumption with observed movement account by account. Until then, keep the two lines apart so a broad launch does not masquerade as durable demand.

Use a Range Instead of a Hero Number

A single forecast invites false confidence. Build a floor case from committed demand, a working case from the launch plan you can support, and a ceiling case from the most inventory you could place before age becomes a problem. Each case should have a visible trigger, not just a different mood.

If more doors confirm, the working case can move. If a launch slips, it moves down. If a buyer reduces the opening order, change the plan before the line runs. The range is useful because it makes new information actionable. A hero number only tells the team whether reality is above or below a guess.

Let Shelf Life Set the Ceiling

The theoretical demand upside is not the ceiling. The ceiling is the quantity you can produce, place, and sell while the remaining life is still acceptable to the next account in the chain. Product that is technically sellable but too old for a distributor or buyer is not flexible inventory. It is inventory with fewer exits.

Work backward from the last acceptable ship window. Subtract production time, release time, freight, receiving, and the selling window the account expects. What remains is the time available for demand to absorb the run. If the plan requires every unit to move late in that window, the run is already too dependent on perfect execution.

Make the First Run Buy Information

The first run will teach you where demand is real, how quickly accounts reorder, and which launch assumptions were generous. Preserve enough flexibility to use that information. A slightly higher unit cost on a manageable run can be easier to recover from than a lower unit cost locked inside expiring inventory.

Write down the assumptions before production starts. Track what changed, when it changed, and which input caused the miss. The goal is not to prove the first forecast right. The goal is to make the second run less dependent on judgment. Size the first run so the shelf stays fed, the next run remains possible, and one optimistic launch does not own all of your cash.