Unified Inventory Sync Across POS, Ecommerce, and Warehouse
Problem
A retail chain with 6 physical stores and an online shop was running inventory on 3 disconnected systems, causing frequent overselling online and customers being turned away in-store for items showing as available.
Solution
We designed a central inventory API acting as the single source of truth, receiving real-time stock movement events from all systems via webhooks and pushing updated levels back within seconds, with a conflict resolution layer and automated reorder alerts.
Measurable Impact
What changed after launch
Overselling incidents reduced from 40+ per month to zero
Manual daily reconciliation process eliminated entirely
Stock accuracy across all channels reached 99.7%
Same-day fulfillment rate improved from 61% to 89%

