> ## Documentation Index
> Fetch the complete documentation index at: https://docs.revenueable.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Managing Contacts

> This tutorial will guide you through the process of managing contact lists for bulk calling campaigns

## Prerequisites

Before you begin, make sure you have:

* An active Revenueable AI account

* Your API key (X-API-KEY)

* A CSV file with contact information

## Execution

***Step 1: Get Existing Contact Lists***

First, retrieve a list of your existing contact lists:

```javascript theme={null}
const options = {method: 'GET', headers: {'X-API-KEY': 'your-api-key-here'}};

fetch('https://prod-api.revenueable.ai/ca/api/v0/workspace/lists', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));
```

***Step 2: Prepare a New Contact List***

Create a CSV file with the following structure:

```text theme={null}
name,mobile_number,custom_variable_1,custom_variable_2
John Doe,+1234567890,value1,value2
Jane Smith,+0987654321,value3,value4
```

Make sure to include all custom variables required by your assistant.

***Step 3: Upload the Contact List***

Upload your contact list to Revenueable AI:

```javascript theme={null}
const formData = new FormData();
formData.append('variables_map', JSON.stringify({
  "name": "name",
  "mobile_number": "mobile_number",
  "custom_variable_1": "custom_variable_1",
  "custom_variable_2": "custom_variable_2"
}));
formData.append('agent_id', 'your-assistant-id');
formData.append('call_config', JSON.stringify({
  "max_concurrent_calls": 5,
  "retry_count": 1
}));
formData.append('country_code', '+1');
formData.append('file', yourCsvFile);

const options = {
  method: 'POST',
  headers: {'X-API-KEY': 'your-api-key-here'},
  body: formData
};

fetch('https://prod-api.revenueable.ai/ca/api/v0/calling/contact/list', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));
```

***Step 4: Delete a Contact List***

If you need to delete a contact list:

```javascript theme={null}
const options = {method: 'DELETE', headers: {'X-API-KEY': 'your-api-key-here'}};

fetch('https://prod-api.revenueable.ai/ca/api/v0/calling/contact/your-list-id', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));
```

***Step 5: Use Contact Lists for Bulk Calls***

Once your contact list is uploaded, you can use it for bulk calling campaigns:

```javascript theme={null}
const options = {
  method: 'POST',
  headers: {
    'X-API-KEY': 'your-api-key-here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "agent_id": "your-assistant-id",
    "list_id": "your-list-id",
    "from_numbers": [
      "phone-number-id-1",
      "phone-number-id-2"
    ]
  })
};

fetch('https://prod-api.revenueable.ai/ca/api/v0/calling/outbound/bulk', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));
```