| Name | Description | Type | Additional Info | 
|---|---|---|---|
| listId | The ID of the list. | globally unique identifier | Required | 
The request body.
PostListSubscriberRequestV3| Name | Description | Type | Additional Info | 
|---|---|---|---|
| SubscriberId | The ID of the subscriber. | globally unique identifier | None. | 
Sample:
{
  "SubscriberId": "8f3c1188-d86b-487c-8e98-8dd042934122"
}
        | Name | Description | Type | Additional Info | 
|---|---|---|---|
| ListSubscriber | The list subscriber. | ListSubscriberV3 | None. | 
| Error | The response error, if any. | ResponseErrorV3 | None. | 
Sample:
{
  "ListSubscriber": {
    "ListId": "c236abdc-ee3d-46ac-ae64-ddad68999821",
    "SubscriberId": "392c4c05-d448-473a-977f-6f5e838c5e16",
    "Created": "2025-11-02T21:50:00.7335566+00:00"
  },
  "Error": {
    "ErrorId": 1,
    "ErrorMessage": "sample string 1"
  }
}
        Sample:
/**/ typeof  === 'function' && ({"ListSubscriber":{"ListId":"c236abdc-ee3d-46ac-ae64-ddad68999821","SubscriberId":"392c4c05-d448-473a-977f-6f5e838c5e16","Created":"2025-11-02T21:50:00.7335566+00:00"},"Error":{"ErrorId":1,"ErrorMessage":"sample string 1"}});