Use this letter template to let your customers know that items they've ordered are on backorder and will be shipped as soon as possible. This document outlines the backorder process.In this article, we present a range of examples that companies can use to effectively communicate with customers facing delayed orders. The examples below are for emailing customers to let them know that their back order items will be delivered within the next three weeks. Backorder or back order refers to items that are outofstock but will be back in stock be soon. In this post, you will explore important backorder email strategies that will help build trust and decrease refunds from customers. 2 What are the benefits of emailing your customers about their back order status? 3 Examples of setting up the Message Templates. Create professional backorder email templates with our AI assistant. Customers are notified when new inventory comes in and when their package is shipped and expected to be delivered.