Use case

Inventory Change Alerts

Inventory levels in product feeds change constantly — restocks, selldowns, warehouse transfers, and data entry errors all affect quantity fields. Missing a critical inventory change can mean overselling, stale ads for out-of-stock products, or missed restock opportunities.

Catalogian detects inventory changes by comparing stock-related fields across every ingest. Whether your feed uses quantity, stock_status, inventory_quantity, qty, or availabilityCode, each change is captured with the exact previous and new values. Set up webhooks to get alerted the moment stock levels shift.

Combine inventory alerts with Catalogian's API to build automated workflows: pause ad campaigns when bestsellers go out of stock, trigger reorder notifications when quantities drop below threshold, or let AI agents report on daily inventory movements across your entire catalog.

Webhook payload — inventory change alert

{
  "event": "delta.completed",
  "source": "main-product-feed",
  "summary": { "added": 0, "changed": 34, "removed": 0 },
  "sampleChanges": [
    {
      "rowId": "SKU-4829",
      "changes": {
        "quantity": { "before": "12", "after": "0" },
        "stock_status": { "before": "in_stock", "after": "out_of_stock" }
      }
    },
    {
      "rowId": "SKU-1204",
      "changes": {
        "quantity": { "before": "0", "after": "250" }
      }
    }
  ]
}