Hi Dante,

I have not tested this, but I assume it's a bug, that it does not convert when sending.

What you could do as a workaround, is to query the message table (sys_ui_message) directly and get your message.

var gr = new GlideRecord('sys_ui_message');

gr.addQuery('key', 'YOUR_KEY');

gr.addQuery('language', 'YOUR_LANGUAGE');

gr.query();

if(gr.next()) {

    gs.log(gr.message); //Output in whichever way you need.

}