---
title: "Promise"
slug: "common-vapidatatype-promise"
updated: 2026-09-17T09:30:32Z
published: 2026-09-17T09:30:32Z
canonical: "api.ncloud-docs.com/common-vapidatatype-promise"
---

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

# Promise

Available in Classic and VPC

This is the contract information.

## Syntax

The syntax is as follows:

```
private String promiseNo;
private CommonCode promiseProductType;
private CommonCode discountProcessMethod;
private Double discountAmount;
private Boolean renew;
```

## Field

The following describes the fields:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `promiseNo` | String | Required | Contract number |
| `promiseProductType` | [CommonCode](/docs/en/common-vapidatatype-commoncode) | Required | Contracted product type |
| `discountProcessMethod` | [CommonCode](/docs/en/common-vapidatatype-commoncode) | Required | Discount processing method |
| `discountAmount` | Double | Required | Discount amount |
| `renew` | Boolean | Required | Renewal status |