Create or Update a Subscriber

Create a new subscriber or update an existing one in a specific list. This unified endpoint handles both creation and update operations based on the email provided.

🔁 Create or Update a Subscriber

If the subscriber exists, their details will be updated. If not, a new subscriber will be created.

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🔹 HTTP Request

Step 1 (Search):

GET API-URL/lists/LIST-UNIQUE-ID/subscribers/search-by-email

Step 2 (Update if exists):

PUT API-URL/lists/LIST-UNIQUE-ID/subscribers/SUBSCRIBER-UNIQUE-ID

Step 3 (Create if new):

POST API-URL/lists/LIST-UNIQUE-ID/subscribers

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🔸 URL Segments

Segment	Required	Description
LIST-UNIQUE-ID	Yes	List unique identifier
SUBSCRIBER-UNIQUE-ID	Yes	Subscriber UID if found via email search

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🔎 GET/PUT/POST Parameters

Parameter	Type	Required	Description
EMAIL	string	Yes	Email address used to identify subscriber
data	array	Yes	Fields to update or insert {name => value}

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🔐 Authorization Header

X-API-KEY: your-api-key-here

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💻 PHP Example

// CREATE / UPDATE EXISTING SUBSCRIBER
$response = $endpoint->createUpdate('LIST-UNIQUE-ID', [
    'EMAIL'    => '[e-mail]',
    'FNAME'    => 'Sophia',
    'LNAME'    => 'Lane Updated Again'
]);

// DISPLAY RESPONSE
echo '<hr /><pre>';
print_r($response->body);
echo '</pre>';

---

📦 Sample JSON Response

{
  "status":"success",
  "data": {
    "record": {
      "subscriber_uid": "zl239xm3df771",
      "email": "[e-mail]",
      "ip_address": "192.168.1.100",
      "source": "api",
      "date_added": "2025-04-17 14:38:00"
    }
  }
}