We're noticing in our returned response body payload. That not all orders have a ShibBydate in either the Order's Fulfillment instructions or the line item fulfillment instructions. The Documentation states this is an Always field and it'd proving not to be nor can I find what conditions make this a not appear. Guaranteed Delivery is not a factor in making this appear or not appear. Freight we thought was a factor but it doesn't appear any normal items.

Here is a live example of a JSON missing the shipByDate:

"lineItemFulfillmentInstructions": { "minEstimatedDeliveryDate": "2018-08-16T07:00:00.000Z", "maxEstimatedDeliveryDate": "2018-08-16T07:00:00.000Z", "guaranteedDelivery": false }

Anyone have some insight as to why this field is not an ALWAYS?