# Merge Signal Datasets and Report Conflicts

**Use case:** 

Merge two normalized signal datasets and report duplicates, one-sided IDs, field-level conflicts, counts, and digests.

## Input

```json
{
  "schemaVersion": "1.0",
  "left": [
    {
      "signalId": "sig-acme-recall-002",
      "brandName": "Acme Labs",
      "eventType": "risk",
      "severity": "critical",
      "status": "active",
      "observedAt": "2026-08-04T13:00:00Z",
      "sourceUrl": "https://alerts.example.com/acme-recall"
    },
    {
      "signalId": "sig-nike-launch-001",
      "brandName": "Nike",
      "eventType": "product_launch",
      "severity": "high",
      "status": "active",
      "observedAt": "2026-08-04T12:00:00Z",
      "sourceUrl": "https://news.example.com/nike-launch"
    },
    {
      "signalId": "sig-left-only-004",
      "brandName": "Northstar",
      "eventType": "review",
      "severity": "low",
      "status": "resolved",
      "observedAt": "2026-02-28T09:00:00Z",
      "sourceUrl": "https://reviews.example.com/northstar"
    }
  ],
  "right": [
    {
      "signalId": "sig-acme-recall-002",
      "brandName": "Acme Labs",
      "eventType": "risk",
      "severity": "high",
      "status": "active",
      "observedAt": "2026-08-04T13:00:00Z",
      "sourceUrl": "https://alerts.example.com/acme-recall-updated"
    },
    {
      "signalId": "sig-nike-launch-001",
      "brandName": "Nike",
      "eventType": "product_launch",
      "severity": "high",
      "status": "active",
      "observedAt": "2026-08-04T12:00:00Z",
      "sourceUrl": "https://news.example.com/nike-launch"
    },
    {
      "signalId": "sig-right-only-003",
      "brandName": "Contoso",
      "eventType": "price_change",
      "severity": "medium",
      "status": "active",
      "observedAt": "2026-08-04T14:00:00Z",
      "sourceUrl": "https://prices.example.com/contoso"
    }
  ]
}
```

## Output

```json
{
  "schemaVersion": {
    "label": "Schema",
    "format": "text"
  },
  "reportType": {
    "label": "Report type",
    "format": "text"
  },
  "attribution": {
    "label": "Input boundary",
    "format": "json"
  },
  "leftCount": {
    "label": "Left rows",
    "format": "number"
  },
  "rightCount": {
    "label": "Right rows",
    "format": "number"
  },
  "unionCount": {
    "label": "Union rows",
    "format": "number"
  },
  "counts": {
    "label": "Relation counts",
    "format": "json"
  },
  "leftOnly": {
    "label": "Left-only IDs",
    "format": "json"
  },
  "rightOnly": {
    "label": "Right-only IDs",
    "format": "json"
  },
  "merged": {
    "label": "Merged IDs",
    "format": "json"
  },
  "exactDuplicates": {
    "label": "Exact duplicate IDs",
    "format": "json"
  },
  "conflicts": {
    "label": "Field conflicts",
    "format": "json"
  },
  "unionRows": {
    "label": "Deterministic union rows",
    "format": "json"
  },
  "decision": {
    "label": "Review decision",
    "format": "json"
  },
  "leftDigest": {
    "label": "Left SHA-256",
    "format": "text"
  },
  "rightDigest": {
    "label": "Right SHA-256",
    "format": "text"
  },
  "unionDigest": {
    "label": "Union SHA-256",
    "format": "text"
  },
  "inputDigest": {
    "label": "Input SHA-256",
    "format": "text"
  },
  "resultDigest": {
    "label": "Result SHA-256",
    "format": "text"
  }
}
```

## About this Actor

This example demonstrates how to use [Brand Signal Dataset Merge and Conflict Report](https://apify.com/zinin/us-brand-signal-merge-report) with a specific input configuration. Visit the [Actor detail page](https://apify.com/zinin/us-brand-signal-merge-report) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
This Task's input is already configured above — use it as-is rather than inventing a new one.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/zinin/us-brand-signal-merge-report.md

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).