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

# Group Certificate Authority Properties


```
{
"GroupCertificateAuthorityId": "string",
"GroupCertificateAuthorityArn": "string"
}
```

Group Certificate Authority Properties  
Information about a certificate authority for a group.  
type: object

GroupCertificateAuthorityId  
The ID of the certificate authority for the group.  
type: string

GroupCertificateAuthorityArn  
The ARN of the certificate authority for the group.  
type: string