Why do product data errors reach the shelf?
Product data errors reach the shelf because the data is created upstream, propagates through ordering and planogram systems, and is often only caught when physical goods finally meet it. GS1 best practice places the obligation on the manufacturer to measure, validate and communicate product information post-production, both internally and to trading partners, before new products arrive at a warehouse or distribution centre 1. When that does not happen, the error travels: planogram information sent to a store can leave a new product line overhanging the shelf or smaller than the space allotted, and retailers may reject items at delivery because what arrives is not what was ordered 1.
Why errors are caught late
Detection frequently happens at the receiving dock rather than at data entry. Ralf Lind, Business Development Manager at Coop Inkpot & Kategori AB, describes discovering the error first when goods are received in the distribution centre, by which point store planograms have already been built on inaccurate information 1. Coop is Sweden's second biggest retailer, accounting for about 20% of the market 1.
Scale and system drift
- Catalogs spanning hundreds of thousands of SKUs across many channels make consistency hard to maintain, and the managers keeping product information up to date still make mistakes 2.
- System stock diverges from physical stock through scanning errors, shrinkage, misplaced items and data delays, which makes replenishment decisions unreliable and widens shelf gaps 3.
- Inventory systems can show units on hand while a SKU goes weeks without being in a single store, a pattern known as phantom inventory 4.
The downstream cost is lost sales and eroded consumer trust, particularly in e-commerce 5.