POST v3/lists/{listId}/subscribers
https://api.questline.com/v3/lists/{listId}/subscribers
Adds a subscriber to a list.
Request Information
URI Parameters
| Name | Description | Type | Additional Info |
|---|---|---|---|
| listId | The ID of the list. | globally unique identifier | Required |
Body Parameters
The request body.
PostListSubscriberRequestV3| Name | Description | Type | Additional Info |
|---|---|---|---|
| SubscriberId | The ID of the subscriber. | globally unique identifier | None. |
Request Formats
application/json, text/json
Sample:
{
"SubscriberId": "4d8b1c95-5c55-4408-8815-2ae5d6ca0d71"
}
Response Information
Resource Description
PostListSubscriberResponseV3| Name | Description | Type | Additional Info |
|---|---|---|---|
| ListSubscriber | The list subscriber. | ListSubscriberV3 | None. |
| Error | The response error, if any. | ResponseErrorV3 | None. |
Response Formats
application/json, text/json
Sample:
{
"ListSubscriber": {
"ListId": "b2be5a74-b504-40d3-9109-d67c861444b9",
"SubscriberId": "23409651-bb86-4461-bc0a-5d61733e7723",
"Created": "2026-07-18T10:17:59.2996939+00:00"
},
"Error": {
"ErrorId": 1,
"ErrorMessage": "sample string 1"
}
}
text/javascript, application/javascript, application/json-p
Sample:
/**/ typeof === 'function' && ({"ListSubscriber":{"ListId":"b2be5a74-b504-40d3-9109-d67c861444b9","SubscriberId":"23409651-bb86-4461-bc0a-5d61733e7723","Created":"2026-07-18T10:17:59.2996939+00:00"},"Error":{"ErrorId":1,"ErrorMessage":"sample string 1"}});