OIH (Order Inventory Health)

Order Inventory Health (OIH) is a performance and planning metric that measures the availability, depth, and readiness of inventory to meet current and upcoming order volume. It reflects the alignment between demand and supply, particularly for high-velocity or promoted ASINs.

OIH takes into account:

• On-hand inventory (OH) at Amazon FCs
• Open purchase orders (POs) and inbound shipments
• Sales velocity and forecasted demand
• Out-of-stock (OOS) risk
• Fill rate and backorder history

OIH is often tracked in:

• Retail Analytics Premium (ARAP) dashboards
• Vendor scorecards
• Weekly business reviews (WBRs)
• Availability reports shared during key events like Prime Day or Q4 prep

Why OIH matters:

• Poor OIH can lead to lost sales, Buy Box loss, and search rank drops
• Critical for maintaining in-stock rates on fast-moving or advertised products
• Helps vendors and sellers plan replenishment and identify ASINs at risk
• Affects forecasting accuracy, customer experience, and retail readiness

💡 Example: A vendor has a strong forecast for Q4, but low OIH for a top-selling toy may trigger urgent PO placement or air freight recommendations.

In short:
OIH (Order Inventory Health) measures how well your inventory can meet Amazon’s demand - a key metric for avoiding stockouts, maintaining sales momentum, and optimizing fulfillment readiness.