Update Schedule SMS
Update Schedule SMS for SMSGatewayCenter APIs
Introduction to SMSGatewayCenter APIs
Welcome to SMSGatewayCenter’s API documentation hub! This guide helps you update scheduled SMS timestamps using our powerful Update Schedule SMS API, part of our messaging suite including SMS API for bulk messaging, WhatsApp Business API for customer engagement, Voice Call API for automated alerts, and Two-Way SMS API for interactive communication. Our API supports only POST methods over HTTP, offering flexibility for managing SMS schedules. Ideal for developers in India, start integrating with our SMS gateway at unify.smsgateway.center/signup/!
Update the scheduled timestamp of your SMS to adjust send times as needed. Include country codes for international messaging to ensure global reach. This endpoint enhances your bulk SMS campaigns with real-time delivery reports and Unicode support, perfect for time-sensitive notifications.
API Endpoint
https://unify.smsgateway.center/SMSApi/schedule/update
Key | Value | Description |
---|---|---|
Login Credentials (Required) | ||
Authenticate your API request using userid-password or apiKey—choose one method. | ||
userid | Your Registered Username | Your registered username; use if apiKey isn’t provided. Signup for User ID |
password | Your Password | URL-encoded password (for special characters); use if apiKey isn’t provided. Signup for API Key |
Header (optional) Parameters | ||
apiKey | Your unique apiKey | apiKey needs to be sent as HTTP header when you are not using userid-password method. You can avail this from your user control panel and use instead of userid-password HTTP Request parameter. Please do not disclose this to anyone. |
Required Parameters | ||
uuid | Transaction ID | Identifier to update your schedule time. |
scheduletime | Schedule Time | Your new time to update the schedule time. Date time format needs to be YYYY-MM-DD HH:MM:SS |
output | plain|json|plain | Value for response format.System default is plain. If you need responses in json or plain then you have to give value as json or plain. |
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://unify.smsgateway.center/SMSApi/schedule/update",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "userid=YourUsername&password=YourPassword&&scheduletime=2020-01-01 00:00:00&uuid=83147103413249843&output=json",
CURLOPT_HTTPHEADER => array(
"apikey: XXXXXXXXXXXXXXXXXXXX",
"cache-control: no-cache",
"content-type: application/x-www-form-urlencoded"
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
{
"response": {
"api": "schedule",
"action": "update",
"status": "success",
"msg": "Schedule time updated successfully.",
"code": "200"
}
}

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