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).

# ListGroupCertificateAuthoritiesResponse
<a name="definitions-listgroupcertificateauthoritiesresponse"></a>

```
{
"GroupCertificateAuthorities": [
  {
    "GroupCertificateAuthorityId": "string",
    "GroupCertificateAuthorityArn": "string"
  }
]
}
```

ListGroupCertificateAuthoritiesResponse  
type: object

GroupCertificateAuthorities  
A list of certificate authorities associated with the group.  
type: array  
items: [GroupCertificateAuthorityProperties](definitions-groupcertificateauthorityproperties.md)

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