When SKU Velocity Charts Mislead Supervisors

Velocity charts celebrate units sold or shipped per day. They say little about whether the pick face was empty at 14:00 while reserve stock sat two aisles away waiting for a forklift that was tied up on inbound.

During visibility assessments we overlay velocity with replenishment cycle time and face-out events. High-velocity SKUs with long replenishment cycles create false confidence: the chart looks healthy until a promotion or festival week empties the face mid-shift.

A useful correction is to track ‘face empty minutes’ alongside units shipped. Even a coarse tally from shift leads—hash marks on a clipboard—reveals patterns your velocity dashboard never shows.

Before changing safety stock, walk the path from reserve to face during the busiest outbound hour. Distance and aisle conflict explain more stockouts than forecast error in many Thai regional depots.