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": "121fd8fb-83f7-4790-8abb-ee9528b2cd6b"
}
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": "f7b3159b-5020-43d6-9ebd-4db0946bca2c",
"SubscriberId": "a330c9fc-4770-4c8b-aeda-7c06cd706a77",
"Created": "2026-05-22T04:10:54.2660405+00:00"
},
"Error": {
"ErrorId": 1,
"ErrorMessage": "sample string 1"
}
}
text/javascript, application/javascript, application/json-p
Sample:
/**/ typeof === 'function' && ({"ListSubscriber":{"ListId":"f7b3159b-5020-43d6-9ebd-4db0946bca2c","SubscriberId":"a330c9fc-4770-4c8b-aeda-7c06cd706a77","Created":"2026-05-22T04:10:54.2660405+00:00"},"Error":{"ErrorId":1,"ErrorMessage":"sample string 1"}});