Articles by

Jannik Semmelhaack

CEO & Founder, VOIDS

Jannik is founder and CEO of VOIDS. He writes about AI-powered demand forecasting, inventory optimization, and supply-chain strategy for DTC brands.

The VOIDS Blog

Learn when demand forecasting suits DACH SMEs, how forecasts become planning actions, and which limits to consider before implementation.

Learn when demand forecasting suits DACH SMEs, how forecasts become planning actions, and which limits to consider before implementation.

Learn how to correct forecast bias in ecommerce: measure directional error by SKU, backtest changes, and turn findings into purchase actions.

Learn what ecommerce supply chain optimization means, how planning and logistics connect, and which daily decisions improve stock control.

Build an ecommerce inventory budgeting plan that aligns cash, demand, and replenishment. Use these practical steps to improve purchasing decisions.

Learn how to avoid overstock in ecommerce by reviewing demand, stock records, and replenishment decisions before cash gets tied up.

Learn how providers help DTC brands avoid out-of-stocks without guesswork through earlier inventory signals and clear purchasing decisions.

Reduce capital tied up in inventory planning with demand-led stock targets, weekly actions, and safeguards against costly stockouts.

Learn to prioritize orders by cash flow using payment dates, commitments, and exception reviews. Build a repeatable routine today.

Learn the safety stock formula for ecommerce brands, set practical reorder buffers, and improve inventory decisions. Start planning smarter.

Compare supply chain management software for ecommerce by workflow, integrations, risks and ROI. Use the 2026 checklist to choose.

Use an out of stock costs calculator to estimate lost margin, ad waste and recovery costs. Learn the inputs and start a reliable review.

Build a purchasing marketing inventory forecast that connects campaigns, demand, stock and purchase orders. Learn the 2026 process.

Jannik Semmelhaack

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