# Confirm no-change run returns zero rows

**Use case:** 

No-change check: watchlist already matches current availability, so a correct run returns 0 rows and bills $0. Shows that quiet runs cost nothing. Max $5.00/run for up to 50 rows -- capped, lands clean.

## Input

```json
{
  "nowIso": "2026-09-28T12:00:00Z",
  "observations": [
    {
      "variantId": "syn-rtx5080-ne-01",
      "sourceUrl": "https://www.newegg.com/p/synthetic-rtx5080-01",
      "price": 999,
      "availability": "in-stock",
      "checkedAt": "2026-09-28T12:00:00Z",
      "adapterHealth": "ok"
    },
    {
      "variantId": "syn-rx9070-ne-01",
      "sourceUrl": "https://www.newegg.com/p/synthetic-rx9070-01",
      "price": 599,
      "availability": "in-stock",
      "checkedAt": "2026-09-28T12:00:00Z",
      "adapterHealth": "ok"
    }
  ],
  "partitionSignal": {
    "armedPartitions": [
      "P2"
    ]
  },
  "perRunCapUsd": 5,
  "capMode": "capped",
  "storedBaseline": {
    "watchlistId": "syn-watch-01",
    "variants": [
      {
        "variantId": "syn-rtx5080-ne-01",
        "sku": "SYN-RTX5080-16G-NE",
        "retailer": "newegg",
        "availability": "in-stock",
        "lastPrice": 999,
        "checkedAt": "2026-09-28T11:15:00Z"
      },
      {
        "variantId": "syn-rx9070-ne-01",
        "sku": "SYN-RX9070-16G-NE",
        "retailer": "newegg",
        "availability": "in-stock",
        "lastPrice": 599,
        "checkedAt": "2026-09-28T11:15:00Z"
      }
    ]
  },
  "watchlist": {
    "watchlistId": "syn-watch-01",
    "skuUrls": [
      "https://www.newegg.com/p/synthetic-rtx5080-01",
      "https://www.newegg.com/p/synthetic-rx9070-01"
    ],
    "partition": "P1",
    "partitionMode": "armed",
    "priceDropPct": 5,
    "scheduleHours": 1
  }
}
```

## Output

```json
{
  "rowId": {
    "label": "Row ID",
    "format": "string"
  },
  "watchlistId": {
    "label": "Watchlist name",
    "format": "string"
  },
  "sku": {
    "label": "SKU",
    "format": "string"
  },
  "retailer": {
    "label": "Retailer",
    "format": "string"
  },
  "partition": {
    "label": "Partition",
    "format": "string"
  },
  "variantId": {
    "label": "Product ID",
    "format": "string"
  },
  "transition": {
    "label": "Transition",
    "format": "string"
  },
  "sourceUrl": {
    "label": "Source URL",
    "format": "string"
  },
  "checkedAt": {
    "label": "Checked at",
    "format": "string"
  },
  "notice": {
    "label": "Notice",
    "format": "string"
  },
  "adapterHealth": {
    "label": "Access health",
    "format": "string"
  },
  "billableEvent": {
    "label": "Billable event",
    "format": "string"
  },
  "billable": {
    "label": "Billable",
    "format": "boolean"
  },
  "unitPriceUsd": {
    "label": "Unit price USD",
    "format": "number"
  },
  "oldPrice": {
    "label": "Old price",
    "format": "number"
  },
  "newPrice": {
    "label": "New price",
    "format": "number"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The GPU Restock Monitor - Verified Alerts with Proof Actor is ready to run with the inputs already set for "Confirm no-change run returns zero rows". [Sign up or log in](https://console.apify.com/create-task-from-example/ytx1ZBZVvmqKpTklz) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Confirm no-change run returns zero rows" task

The GPU Restock Monitor - Verified Alerts with Proof Actor will start running based on the input automatically. You can also change all the input fields, like run time, observations, and more, to match your specific use case.

### 3. Receive the "Confirm no-change run returns zero rows" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as row id, watchlist name, SKU, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Confirm no-change run returns zero rows" task via API](https://apify.com/steadyworks/gpu-restock-monitor.md).

## About this Actor

This example demonstrates how to use [GPU Restock Monitor - Verified Alerts with Proof](https://apify.com/steadyworks/gpu-restock-monitor.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/steadyworks/gpu-restock-monitor.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/steadyworks/gpu-restock-monitor.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).