An online children’s clothing brand with 12 warehouse staff shipped about 900 orders a day. On a busy November week, they discovered that 3 out of every 100 parcels contained the wrong size or the wrong item. Refunds and re-shipping alone cost roughly $26,000 that month, before counting the angry emails from parents.
Why the Picking Error Was Not Really a Picking Error
The workers were actually fast. They picked by scanning a bin label and a barcode on the item, and the system still passed the mismatch through because the item code in the bin was outdated. Someone had stocked a shelf in the wrong size two weeks earlier and never fixed the location records.
The owner assumed the warehouse needed more scanners and more speed. A closer look showed that the real breakdown happened during restocking, when new cartons were opened and placed before their location codes were entered. The faster the staff worked, the more wrong items they pushed into the picking aisles.
Three Changes, No New Hardware
- Restocking is now a separate task, not a side job done between picks. One person owns it from 8am to 11am, with a count-up checklist for each shelf.
- Any carton with a torn or missing product label goes to a “quarantine bin” and is never placed until a senior staff member confirms the item. That bin is cleared twice a day, not once a week.
- Every new batch of stock requires a quick visual spot-check of three units before the shelf location is activated in the system.
The change sounds almost too simple, but the math was dramatic. Mispicks dropped to below 1 percent within six weeks, and returns due to wrong sizes fell by half. The warehouse supervisor later admitted that the old method had been making the team more productive at doing the wrong task, and speed without correct location codes just creates a larger pile of returns.
The Part Nobody Wants to Hear
ERP Consulting spent most of our first walkthrough counting how many times the same carton was touched before shipping. We found the average box was touched eight times. Every touch added a chance for a mistake, and the team had been treating each touch as normal.
When you walk your own warehouse this week, follow one carton from the delivery dock to the courier van. Count every hand that touches it, and ask each person what they do when the number on the box disagrees with the number on the screen. The first gap you find is usually where your shrinkage and returns actually begin, and fixing that gap will help you far more than adding a second barcode scanner.