The subscribers can unsubscribe/Opt-Out from the SMS newsletter by URL https://yourdomain.com/?wpsms_unsubscribe=01111111111
Shorten URL By Bitly
Also, by enabling Bitly on the Setting page, you are able to shorten unsubscribing URLs too, here is an example of a shortened URL https://bit.ly/3x2esyx
How to send the Unsubscribe/Opt-Out link in welcome SMS?
You may include the Unsubscribe/Opt-Out link automatically in the welcome SMS? use the below filter in your functions.php theme.
/**
* Modify the welcome SMS message
*
* @param $message
* @param $mobile
* @return string
*/
function sendUnSubscribeUrlInWelcomeSMS($message, $mobile)
{
$message .= sprintf('\r\n Unsubscribe link: %s', WPSms()->newsletter()->generateUnSubscribeUrlByNumber($mobile));
return $message;
}
add_filter('wpsms_welcome_sms_message', 'sendUnSubscribeUrlInWelcomeSMS', 10, 2);To go to the new line, you can use %0A or \r\n depending on the SMS gateway provider.
How to customize the unsubscribe URL:
You may modify the ?wpsms_unsubscribe query string in the URL by using the below filter in your functions.php theme.
/**
* Modify to unsubscribe query string
*
* @param $queryString
* @return string
*/
function modifyUnSubscribeQueryString($queryString)
{
$unsubscribe = 'unsubscribe';
return $unsubscribe;
}
add_filter('wpsms_unsubscribe_query_string', 'modifyUnSubscribeQueryString');