---
agentTools:
  projectIndex: https://quiver.readme.io/llms.txt
---

# /inventory/updates

Quiver held inventory updates

Sent when the quantity of a Quiver-held product changes.

```json
{
  "productId": 1,
  "externalProductId": "PRODUCT_1",
  "createdAt": "2021-12-02T09:13:56.699365Z",
  "quantity": 100
}
```

`quantity` is the new total held, not a delta. `externalProductId` is your own product reference, so you can match it to your catalogue.