# Update listing inventory

> Eto API reference for `PUT /api/v1/listings/{listing_id}/inventory`. Base URL `https://eto.tools/api/v1/`. Authenticate with the `X-Eto-API-Key` header.

Part of the [Eto API reference](https://eto.tools/dev/docs/). The full reference in one file is at [llms-full.txt](https://eto.tools/dev/docs/llms-full.txt); the machine-readable schema is at [openapi.json](https://eto.tools/dev/docs/openapi.json).

## PUT /api/v1/listings/{listing_id}/inventory

Update listing inventory

- Operation ID: `listing_inventory_update`
- Slug: `listing-inventory-update`
- Category: Listings
- Authentication: API key plus a connected store. Eto uses that store’s Etsy token, so the shop_id must belong to a store connected to your Eto account or the call answers 403 STORE_NOT_CONNECTED.
- HTML: https://eto.tools/dev/docs/#ep-listing-inventory-update
- Markdown: https://eto.tools/dev/docs/listings/listing-inventory-update.md

Update inventory, pricing, and variations for a listing you own. This is the only Etsy call that changes an existing listing's price.
Eto finds the connected store that owns the listing and uses its token. A listing outside your connected stores answers 403 LISTING_NOT_IN_CONNECTED_STORE.
Etsy replaces the whole inventory: send every product back with its sku, offerings (price, quantity, is_enabled) and the price_on_property, quantity_on_property and sku_on_property arrays unchanged. The safe pattern is GET the inventory, change the prices, PUT it all back.

Proxied to the Etsy API at `/v3/application/listings/{listing_id}/inventory`. Fields Etsy returns are passed through untouched.

### Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `listing_id` | path | `integer` | yes | The Etsy listing ID |
| `products` | body | `array` | yes | Every product of the listing, each with sku, property_values and offerings [{price, quantity, is_enabled}]. Price is a decimal (amount / divisor). |
| `price_on_property` | body | `array` | no | Property ids that change price. |
| `quantity_on_property` | body | `array` | no | Property ids that change quantity. |
| `sku_on_property` | body | `array` | no | Property ids that change SKU. |
| `readiness_state_on_property` | body | `array` | no | Property ids that change processing profile. |

### Request

```bash
curl -X PUT -H "X-Eto-API-Key: eto_your_key" -H "Content-Type: application/json" -d '{"products": [...]}' "https://eto.tools/api/v1/listings/1234567890/inventory"
```

```python
import requests

url = "https://eto.tools/api/v1/listings/1234567890/inventory"
headers = {"X-Eto-API-Key": "eto_your_key"}
payload = "{\"products\": [...]}"

response = requests.put(url, headers=headers, data=payload, timeout=120)
response.raise_for_status()
print(response.json())
```

```javascript
const url = "https://eto.tools/api/v1/listings/1234567890/inventory";
const payload = "{\"products\": [...]}";

const response = await fetch(url, {
  method: "PUT",
  body: payload,
  headers: {
    "X-Eto-API-Key": "eto_your_key",
    "Content-Type": "application/json",
  },
});
if (!response.ok) throw new Error(`Eto API ${response.status}`);
const data = await response.json();
```

### Response

`application/json`, passed through from Etsy’s `/v3/application/listings/{listing_id}/inventory` verbatim. The field-by-field data model is in the [v2 preview reference](https://eto.tools/eto-dev-api-v2/), which documents these same routes alongside the whole Etsy schema.

### Errors

Failures answer with the shared error body described in the Errors section: `{"error": {"code", "status", "message", "hint", "docs"}}`. Branch on `code`, not on the message.

This endpoint can additionally return `STORE_NOT_CONNECTED` (403) when the shop is not linked to your account, and `STORE_TOKEN_EXPIRED` (503) when its Etsy authorisation has lapsed and needs reconnecting.