Hey peeps, There was an issue on stack overflow, http:// stackoverflow.com/questions/40429670/unifiedpush-node- sender-completion-block-not-triggered The notification would be sent ok, but the node clients promise would always be rejected, it turns out we were looking for a 200 status, and not a 202(which is what is returned and defined in the REST api docs). I've updated this and pushed out a 0.14.1 release on Saturday night.