The output message for recipient '' is empty. Document delivery has been canceled for this recipient.

Hello!

We have a Telemarketing channel and external account setup and it is of Delivery Mode = Bulk delivery

We have a JS connector to the external account:

function processDeliveryPart (deliveryPart) {
var msgs = <messages successOnSent="true"/>;
for each( var msg in deliveryPart.message ) {
msgs.appendChild(<message
id={msg.@id}
status="1" />);
}
return msgs;
}

//-----------------------------------------------------------------------------
// Useless here, but needed by Neolane
//-----------------------------------------------------------------------------
function getStatus (xml) {
var msgs = <messages/>;
return msgs;
}

//-----------------------------------------------------------------------------
// Useless here, but needed by Neolane
//-----------------------------------------------------------------------------
function getMessages (xml) {
var msgs = <messages/>;
return msgs;
}

 Most of the time we get the error in the broadLog as below:

I have referred a similar thread but, that did not help me. May be I have missed something:

https://experienceleaguecommunities.adobe.com/t5/adobe-campaign-classic-questions/delivery-routing-issue-the-output-message-for-recipient/qaq-p/310406

https://experienceleaguecommunities.adobe.com/t5/adobe-campaign-classic-questions/status-reporting-of-custom-delivery-channel/qaq-p/354805

And a blog as well:

https://blog.amplexor.com/adobe-campaign-going-strong-custom-communication-channels

Could you please help me out to find a solution of if you have come across such scenario then please point me out in the right direction.

Thank you,

Anoop