I am struggling with this and posted this question on another topic. Maybe someone will see it here and knows what the problem is. My code is: {% assign firstname = subscriber.first_name %} {% assign zadnje = firstname | split: "" | last %} {% if zadnje == "o" or zadnje == "a" or zadnje == "e" or zadnje == "k" %} Ćao {{ subscriber.first_name }} {% else %} Ćao {{ subscriber.first_name}}e {% endif %} Subscriber: Ismo Message: ​Ćao Ismoe...