arm_save_subscription_plans

This action will be executed before saving a plan whenever it will be created or updated .

Hook Type: Action
Usage:
add_action( 'arm_save_subscription_plans', 'your_function');
function your_function($posted_data) {
    //Do Your Action
    //$posted_data Posted Subscription Plan Details.
}
Parameters:
$posted_data
Posted Subscription Plan Details