How to manage a JS code task with an embedded data that doesn't exist

Hello,

I made a workflow with multiple calculation, based on embedded data, with a JS code task. My trigger is an Experience ID when any change happen for any contact.

I have a issue when a embedded is missing for one contact. The task is getting on error. I understand why but I need to find something for contournate this problem. I’ve tried to check if the ED is null or undefined but nothing work. Qualtrics doesn’t want to execute a task with an embedded called but no existed.

Here is an exemple of my work:

function codeTask() {

var1 = ~{qde://supplemental.embeddedData.AS_COMPLETED_CAMPAIGNS}
	if (var1 != null) {
	KPI_AS001=1;}
	else {
	KPI_AS001=2;}



	return {
		KPI_AS001
	};
}

Thanks for your help,

J.