# Retrieve advance invoice

> For the complete machine-readable documentation index, see [llms.txt](https://apidocs.chargebee.com/llms.txt).


**Caution**

-   This API will return an error when [multi-frequency billing](/docs/api/subscriptions#subscription-billing-frequencies) is enabled.

Retrieves the _advance\_invoice\_schedule_ for a subscription. Note that this endpoint is only applicable for _schedule\_type = specific\_dates_ or fixed\_intervals.

## Sample Request

#### cURL

```bash
curl  https://{site}.chargebee.com/api/v2/subscriptions/__test__KyVkmQSCX2wPg43/retrieve_advance_invoice_schedule \
     -u {site_api_key}:
```

#### .NET

```dotnet
using ChargeBee.Api;
using ChargeBee.Models;

ApiConfig.Configure("{site}","{site_api_key}");
EntityResult result = Subscription.RetrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43").Request();

List<AdvanceInvoiceSchedule> advanceInvoiceSchedules = result.AdvanceInvoiceSchedules;
```

#### Go

```go
package main
import (
    "fmt"
    "github.com/chargebee/chargebee-go/v3"
    subscriptionAction "github.com/chargebee/chargebee-go/v3/actions/subscription"
)
func main() {
    chargebee.Configure("{site_api_key}","{site}");
    res,err := subscriptionAction.RetrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43").Request()
    if err != nil {
        fmt.Println(err)
    } else {
        AdvanceInvoiceSchedules := res.AdvanceInvoiceSchedules
    }
}
```

#### Go

```go
package main

import (
  "fmt"
  "github.com/chargebee/chargebee-go/v4"
)

func main() {
  config := &chargebee.ClientConfig{
    SiteName: "{site}",
    ApiKey: "{site_api_key}",
  }    
  client := chargebee.NewClient(config)
  
  res, err := client.Subscription.RetrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43")
      if err != nil {
        fmt.Println(err)
    } else {
        AdvanceInvoiceSchedules := res.AdvanceInvoiceSchedules
    }
}
```

#### Java

```java
import com.chargebee.*;
import com.chargebee.ListResult;
import com.chargebee.models.*;
import com.chargebee.models.enums.*;
import java.io.IOException;
import java.util.List;

public class Sample {

    public static void main(String args[]) throws IOException, Exception {
        Environment.configure("{site}", "{site_api_key}");
        Result result = Subscription.retrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43").request();

        List<AdvanceInvoiceSchedule> advanceInvoiceSchedules = result.advanceInvoiceSchedules();
    }
}
```

#### Java

```java
import com.chargebee.v4.client.ChargebeeClient;
import com.chargebee.v4.models.advanceInvoiceSchedule.AdvanceInvoiceSchedule;
import com.chargebee.v4.models.subscription.params.SubscriptionRetrieveAdvanceInvoiceScheduleParams;
import com.chargebee.v4.models.subscription.responses.SubscriptionRetrieveAdvanceInvoiceScheduleResponse;
import java.util.List;

public class SubscriptionRetrieveAdvanceInvoiceSchedule {

    public static void main(String[] args) {
        ChargebeeClient client = ChargebeeClient.builder()
            .apiKey("{site_api_key}")
            .siteName("{site}")
            .build();

        SubscriptionRetrieveAdvanceInvoiceScheduleResponse response = client.subscriptions().retrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43");

        List<AdvanceInvoiceSchedule> advanceInvoiceSchedules = response.getAdvanceInvoiceSchedules();
    }
}
```

#### Node.js

```node
import Chargebee from "chargebee";

const chargebee = new Chargebee({
    site: "{site}",
    apiKey: "{site_api_key}",
});

try {
    const result = await chargebee.subscription.retrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43");

    console.log(result);
    const advanceInvoiceSchedules = result.advance_invoice_schedules;
} catch (err) {
    console.log(err);
}
```

#### PHP

```php
<?php

require __DIR__ . '/vendor/autoload.php';

use Chargebee\ChargebeeClient;

$chargebee = new ChargebeeClient(options: [
    "site" => "{site}",
    "apiKey" => "{site_api_key}",
]);
$result = $chargebee->subscription()->retrieveAdvanceInvoiceSchedule("__test__KyVkmQSCX2wPg43");
$advanceInvoiceSchedules = $result->advance_invoice_schedules;
```

#### Python

```python
from chargebee import Chargebee

cb_client = Chargebee(api_key="{site_api_key}", site="{site}")
response = cb_client.Subscription.retrieve_advance_invoice_schedule("__test__KyVkmQSCX2wPg43")
advance_invoice_schedules = response.advance_invoice_schedules
```

#### Ruby

```ruby
require 'chargebee'

ChargeBee.configure(:site => "{site}",
  :api_key => "{site_api_key}")

result = ChargeBee::Subscription.retrieve_advance_invoice_schedule("__test__KyVkmQSCX2wPg43")

advance_invoice_schedules = result.advance_invoice_schedules
```

## Sample Response

```json
{
  "advance_invoice_schedules": [
    {
      "id": "__test__KyVkmQSCX2wUp4H",
      "object": "advance_invoice_schedule",
      "schedule_type": "specific_dates",
      "specific_dates_schedule": {
        "date": 1518339710,
        "object": "specific_dates_schedule",
        "terms_to_charge": 2
      }
    },
    {..}
  ]
}
```

## URL Format

**GET** https://[site].chargebee.com/api/v2/subscriptions/{subscription-id}/retrieve_advance_invoice_schedule

## Returns

- `advance_invoice_schedules` (always returned)
  Resource object representing advance\_invoice\_schedule