# Validate customer VAT numbers before the EC Sales List

**Use case:** 

Monthly bulk check of intra-EU customer VAT numbers. Add your own VAT number to get consultation numbers as reverse-charge evidence.

## Input

```json
{
  "vatNumbers": [
    "NL810433941B01",
    "BE0403170701",
    "DE143454214"
  ],
  "companyNames": [],
  "defaultCountry": "NL",
  "requesterVatNumber": "NL123456789B01",
  "maxWaitMinutes": 5,
  "retryUnavailableInLaterRuns": true,
  "retryForDays": 7,
  "minMatchScore": 80,
  "maxCandidatesPerCompany": 3,
  "maxChecksPerRun": 10000,
  "maxConcurrency": 6,
  "useTestService": false,
  "webhookUrl": "<YOUR_SECRET>",
  "stateKey": "<YOUR_SECRET>",
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}
```

## Output

```json
{
  "payload.input": {
    "label": "Input",
    "format": "text"
  },
  "payload.status": {
    "label": "Status",
    "format": "text"
  },
  "payload.valid": {
    "label": "Valid",
    "format": "boolean"
  },
  "payload.vatNumber": {
    "label": "VAT number",
    "format": "text"
  },
  "payload.name": {
    "label": "Registered name",
    "format": "text"
  },
  "payload.address": {
    "label": "Registered address",
    "format": "text"
  },
  "payload.countryCode": {
    "label": "Country",
    "format": "text"
  },
  "payload.consultationNumber": {
    "label": "Consultation number",
    "format": "text"
  },
  "payload.checkedAt": {
    "label": "Checked at",
    "format": "date"
  },
  "payload.fromEarlierRun": {
    "label": "Result of an earlier run",
    "format": "boolean"
  },
  "payload.statusReason": {
    "label": "Reason",
    "format": "text"
  },
  "changeType": {
    "label": "Since last check",
    "format": "text"
  },
  "summary": {
    "label": "Change",
    "format": "text"
  }
}
```

## How it works

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

The VIES VAT Validator – Bulk EU VAT Number Check Actor is ready to run with the inputs already set for "Validate customer VAT numbers before the EC Sales List". [Sign up or log in](https://console.apify.com/create-task-from-example/vRpR8Sh6rXSYRYvhG) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Validate customer VAT numbers before the EC Sales List" task

The VIES VAT Validator – Bulk EU VAT Number Check Actor will start running based on the input automatically. You can also change all the input fields, like VAT numbers, company names (find the vat number), and more, to match your specific use case.

### 3. Receive the "Validate customer VAT numbers before the EC Sales List" 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 input, status, valid, 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 "Validate customer VAT numbers before the EC Sales List" task via API](https://apify.com/lwsdjfls/vies-vat-validator.md).

## About this Actor

This example demonstrates how to use [VIES VAT Validator – Bulk EU VAT Number Check](https://apify.com/lwsdjfls/vies-vat-validator.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/lwsdjfls/vies-vat-validator.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/lwsdjfls/vies-vat-validator.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`).