Knowledge
Knowledge hub. Articles on purchase planning, demand forecasting, and inventory management.
A 30-day average is not a forecast. Why rolling averages quietly wreck your inventory
The most common way to plan purchasing — a 30/60/90-day average times days to delivery — isn't wrong occasionally, it's wrong systematically: it lags the trend, can't see the season and misleads on intermittent demand. We show each case with numbers.
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Safety stock: what it is, how to calculate it, and why most companies stick with 'days of cover' anyway
Safety stock is a buffer against demand and supply variability — and there's an elegant formula to compute it. So why do most companies stick with 'days of cover' anyway? Because simplicity makes sense — until it starts to cost.
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What did your last stockout cost you?
A stockout has at least three hidden costs — lost margin, a lost customer and a marketplace ranking penalty. And if you don't know what your last one cost you, that doesn't mean it cost zero.
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We were at Base Expo 2026. One topic came back in every panel — and it wasn't technology
We went to listen to what Polish e-commerce is living with. The thread that came back most often wasn't technology or marketing — it was stockouts, and processes nobody had put in order.
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