Christoph Kay
Christoph worked as an electronics technician in industry for five years and saw how missing small parts slow down operations. Later, as a project manager at P.S. Cooperation GmbH (Böllhoff Group), he led system-supported C-parts logistics projects for mid-sized industrial and machine-building companies. Today, he is building repleno full-time, inventory management that helps small businesses detect demand early and automate reordering.
Latest articles
Lead Time Formula: How to Calculate Replenishment Lead Time
Why your supplier's promised delivery time is not enough to calculate the lead time, and which days you have to add to the formula.
Managing Multiple Storage Locations: Stock, Transfers, Replenishment
Central warehouse, workshop, van, job site: which place needs its own quantities, how material moves between them and who orders from the supplier.
Dead Stock: How to Spot It and Which Way Out Still Pays
With an Excel template, an AI prompt for the call on each item, and the rules for returns, discounts and donations.
Inventory Monitoring: When Excel Is Enough and When It Isn't
Visual checks, an Excel traffic light or a software alert: which route fits your business, how to build the traffic light in Excel and why every alert depends on the booking.
Inventory Coverage: How Long Your Stock Will Last
How long your current stock lasts, in days: calculate inventory coverage, read it against your lead time, and reorder before material runs short.
Stockout: Definition, Causes and Prevention
Item not available when it is needed? Find the cause, prioritize the shortage, and control replenishment before work stops.
