Why Inventory Data Is Sometimes Incongruent
Overview
You may notice that Total Inventory, Reserved Inventory, and Local Inventory numbers sometimes appear logically inconsistent. For example, the sum of components might not match the total, or numbers may seem to contradict each other. This is normal behavior caused by how Amazon provides inventory data across different reports.
Why This Happens
The different inventory metrics in SellerLegend come from separate Amazon reports that are updated at different intervals:
| Data Point | Source Report | Update Frequency |
|---|---|---|
| Local Inventory | Multi-Country Inventory report | Near real-time |
| Total Inventory | Inventory Health report | Periodic (may be several hours behind) |
| Reserved Inventory | Reserved Inventory report | Periodic |
Because these reports are generated by Amazon at different times, they may be hours apart from each other. During that gap, inventory levels can change due to sales, shipments arriving, returns, or transfers between fulfillment centers.
Example Scenario
- At 10:00 AM, Amazon generates the Inventory Health report showing 100 units total
- At 12:00 PM, 5 units are sold
- At 1:00 PM, the Multi-Country Inventory report is generated showing 95 units locally
- When you view the data, Total Inventory shows 100 but Local Inventory shows 95 -- the reports are simply from different snapshots in time
Key Points
- Temporary mismatches between inventory figures are expected behavior
- The discrepancies are caused by different Amazon reports being generated at different times
- The data will reconcile over time as all reports are refreshed
- If you notice persistent discrepancies that do not resolve within 24 hours, contact support
- Local Inventory (from the Multi-Country Inventory report) tends to be the most current figure