Seasonal inventory planning: work backwards from the date you need stock

If you order when sales are already speeding up, the stock arrives after the season. Seasonal planning means starting from the date you must have goods ready to sell and counting backwards.

In short

• Build a calendar by market and SKU before placing the seasonal order.
• Add supplier, inspection, freight, customs and warehouse lead times.
• Have an exit plan for leftover stock before the season starts.

Plan backwards

Start with the date the inventory has to be available for sale. That is not the campaign launch, the ship's arrival or the day the container is unloaded: goods still on a receiving or inspection hold cannot support the same promise as saleable stock.

Then walk back through receiving, customs, international freight, consolidation, inspection, production, sample approval and supplier confirmation. Use dates from the people responsible and mark which are firm and which are estimates. A good plan shows where there is no room for error, not just the final deadline.

A seasonal readiness worksheet

• Demand window: market, product group, required date, selling period and confirmed commitments.
• Supply milestones: latest approved sample, material commitment, production completion, inspection and cargo-ready dates.
• Capacity: can the supplier, inspector, packing facility, carrier and receiving warehouse handle your quantities on those dates?
• Buffer: know what each buffer covers. Don't add unexplained days at every step without checking the total.
• Contingency: what you do in a shortage, the alternative route, who can approve extra spend, and when you must change promotions.

What if production runs late?

Imagine the order is ready later than planned. Compare the time left with inspection, booking, transport and receiving. Split demand into firm commitments, expected baseline sales and optional campaign volume. A partial shipment may protect the most important commitments without rushing everything.

Check if that urgent part can be identified and inspected on its own, and what it costs in extra handling, documents and transport. Treat the split as an approved exception. A tight calendar is never a reason to skip quality control.

Spain and Japan, separately

Build one calendar per market from the customers, campaigns, receiving teams and routes actually involved. Don't copy a Spain peak into the Japan forecast without evidence. You can share suppliers and quality processes, but pack versions, shipment dates and commitments may differ. Ask each local team for its closures and appointment limits, and note the date you confirmed them. Last year's plan is a starting point, not a schedule.

Rules for shortage and surplus

Decide what triggers a smaller campaign, an extra order, a stock transfer or an alternative product, who decides, and how customers are told. For surplus, look at the next viable selling window, storage cost, product revision risk and the cash tied up. A late purchase can fix a shortage and still leave you with stock that arrives after its season.

Set a final purchasing cutoff: the date after which extra stock can't reach the selling window on the approved route. If the business buys anyway, record the alternative selling plan and the cash at risk.

After the season, compare forecast, sales, accepted receipts, remaining stock, expedited costs and cancelled commitments, and blame the stage where the problem started. The goal is a repeatable process, not "buy more, earlier".

FAQ

How early should I place a seasonal order?

Work backwards from the receiving date through the whole production-to-delivery timeline. It depends on product, supplier, route and season.

How do I avoid excess stock?

Use scenarios, staged purchases, smaller first commitments where possible and an exit plan for stock that doesn't sell.

Can a local warehouse solve seasonal risk?

It improves delivery once stock is there, but it doesn't solve forecasting, production or import timing.