End of support notice: On October 7th, 2026, Amazon will discontinue support for Amazon IoT Greengrass Version 1. After October 7th, 2026, you will no longer be able to access the Amazon IoT Greengrass V1 resources. For more information, please visit [Migrate from Amazon IoT Greengrass Version 1](https://docs.amazonaws.cn/greengrass/v2/developerguide/migrate-from-v1.html).

# GroupCertificateConfiguration
<a name="definitions-groupcertificateconfiguration"></a>

```
{
"GroupId": "string",
"CertificateAuthorityExpiryInMilliseconds": "string",
"CertificateExpiryInMilliseconds": "string"
}
```

GroupCertificateConfiguration  
Information about a group certificate configuration.  
type: object

GroupId  
The ID of the group certificate configuration.  
type: string

CertificateAuthorityExpiryInMilliseconds  
The amount of time, in milliseconds, before the certificate authority expires.  
type: string

CertificateExpiryInMilliseconds  
The amount of time, in milliseconds, before the certificate expires.  
type: string