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Correct answer by
Level 4

//Defined getIfExists

var query = xtk.queryDef.create(

<queryDef schema="nms:recipient" operation="getIfExists">

<select>

<node expr="@email"/>

<node expr="@id"/>

</select>

<where>

<condition expr={"@email='"+ctx.recipient.@email+"'"}/>
<condition expr={"@sourceType='Media'"}/>

</where>
</queryDef>
)


var res = query.ExecuteQuery()

 

//Run the query

var res = query.ExecuteQuery()

 

//Called if statement worked 

if(res.@email.length()>0){

nms.delivery.QueueNotification

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