Update contact date for scheduled delivery

Question

Hi,I'm looking for a way to successfully update the contact date for already scheduled delivery. The delivery is scheduled via Scheduling > Schedule delivery (automatic execution when the scheduled date is reached), the workflow with it is executed and the delivery is prepared and has status "Start pending".What I tried is to update the contact date from js:var deliveryId = 123;
var updatedTime = "2025-10-27T09:00:00.000Z";

var del = nms.delivery.load(deliveryId);
del.scheduling.contactDate = new Date(updatedTime);
del.save();The script successfully updates the contact date, but the delivery is sent at original time not updated one. I think that there is some interim schema which also needs to be updated.Any clues how it can be done? The setup should work in v8.

ccg1706 · Accepted Answer

Hi @neeliv7,

Updating scheduling.contactDate alone won't reschedule a "Start pending" delivery sibce the scheduler catches it at prepare time. You need to pause the delivery update the contact date and then re-run PrepareFromId() to rebuild scheduling data. After that, resume it with Play().

Try with the following code:

var deliveryId = 123;
var newDate = new Date("2025-10-27 09:00:00");
nms.delivery.ExecCommand(deliveryId, "pause");
var del = nms.delivery.load(deliveryId); del.scheduling.contactDate = newDate; del.save();
nms.delivery.PrepareFromId(String(deliveryId)); nms.delivery.Play(String(deliveryId));

Additionallly I share you some useful documentation:

PrepareFromId API

Delivery best practices

Delivery analysis v8

I hope it helps and if you need more guidance just let me know.

Best,

Celia