Every new channel adds revenue and complexity. Without a single source of truth for available quantity, teams buffer stock manually or oversell during promotions.
Start with one number
Pick the SKU-level quantity you trust, then push updates outward. Safety stock and channel-specific caps belong on top of that base, not in side tabs.
Watch velocity, not just quantity
A channel that sells faster should influence reorder timing for the whole catalog. Velocity by channel helps you protect hero SKUs before a marketplace flash sale drains shared inventory.