# Certificate Expiration Renewal - RenewCertificateOrder

## Overview

Certificate Expiration Renewal






## Definition

### Public Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **Action**     | string  | Corresponding API command name, the current API is `RenewCertificateOrder`.                      | **Yes** |
| **PublicKey**  | string  | The user's public key can be obtained from [Console](https://console.sigcalcloud.com/uaccount/api_manage)                                             | **Yes** |
| **Signature**  | string  | User signature generated based on public key and API command, see [Signature Algorithm](/docs/api/summary/signature.md)  | **Yes** |

### Request Parameters

| Parameter Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **CertificateID** | int | Certificate ID Pending Renewal |**Yes**|
| **CertificateBrand** | string | Pending Renewal Certificate Brand |**Yes**|
| **CertificateName** | string | Certificate Name to be Renewed |**Yes**|
| **DomainsCount** | int | Number of Domain Names Supported |**Yes**|
| **ValidYear** | int | Validity Period |**Yes**|
| **CouponID** | string | Coupon ID |No|

### Response Field

| Field Name | Type | Description Information | Required |
|:---|:---|:---|:---|
| **RetCode** | int | Return status code. If it is 0, it means successful return. If it is not 0, it means failure. |**Yes**|
| **Action** | string | Operation command name. |**Yes**|
| **Message** | string | Returns an error message, providing detailed description when `RetCode` is non-zero. |No|




## Example

### Request Example
    
```
https://api.sigcalcloud.com/?Action=RenewCertificateOrder
&CertificateID=1
&CertificateBrand=TrustAsia
&CertificateName=TrustAsia-DV(1年)
&DomainsCount=1
&ValidYear=1
&CouponID=coupon-1234
```

### Response Example
    
```json
{
  "Action": "RenewCertificateOrderResponse",
  "RetCode": 0
}
```