Lesson: 45 | Notify the Person Account when the Status is set as Active

Expected Outcome

Code

trigger SendActivationEmail on Account (after update) {
    List<Messaging.SingleEmailMessage> emails = new List<Messaging.SingleEmailMessage>();
    for(Account acc : Trigger.new) {
        if(acc.Status__c == 'Active' && acc.Status__c != Trigger.oldMap.get(acc.Id).Status__c) {
            Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();
            email.setToAddresses(new String[] { acc.Email__c });
            email.setSubject('Your account is now active');
            email.setPlainTextBody('Congratulations! Your account is now active.');
            emails.add(email);
        }
    }
    if(!emails.isEmpty()) {
        Messaging.sendEmail(emails);
    }
}

Video