--- title: How does Ella handle out-of-stock items on a PO? description: Learn how Ella handles out-of-stock items, back-order settings, and alternative product suggestions on the draft order screen. --- [Skip to content](https://knowledge.wizcommerce.com/how-does-ella-handle-out-of-stock-items-on-a-po#main-content) [![Asset 9](https://knowledge.wizcommerce.com/hs-fs/hubfs/Asset%209.png?width=223&height=30&name=Asset%209.png)](https://wizcommerce.com/) Open main navigation Close main navigation - [Contact us](https://mail.google.com/mail/?view=cm&fs=1&to=help@wizcommerce.com) [Contact us](https://mail.google.com/mail/?view=cm&fs=1&to=help@wizcommerce.com) Hi, how can we help? - There are no suggestions because the search field is empty. 1. [WizCommerce Help Centre](https://knowledge.wizcommerce.com/) 2. [Help & FAQs](https://knowledge.wizcommerce.com/help-faqs) 3. [Help with Ella](https://knowledge.wizcommerce.com/help-faqs#help-with-ella) June 4, 2026 # How does Ella handle out-of-stock items on a PO? It depends on whether back-order is allowed for that item. - **If back-order is enabled:** Ella accepts the order and marks that item as a back-order. - **If back-order is not enabled:** Ella blocks submission and shows similar products as alternatives so the rep can swap the item on the spot. The back-order setting lives on the item itself, not on the customer — so the same buyer can have some items that back-order and others that don't. --- #### **» What the rep sees on screen** **For a back-ordered item:** The item appears on the draft order with a back-order indicator. The rest of the order is unaffected, other items that are in stock proceed normally. The rep can submit the order as-is, and the back-ordered item is flagged accordingly when it reaches the ERP. **For a blocked item:** Submission is prevented until the item is resolved. Ella surfaces similar products directly on the draft screen so the rep can swap the item with one click. Once a valid alternative is selected, submission is unblocked. --- #### **» Things to keep in mind** - The back-order setting is configured at the item level in your ERP or pricelist — not by Ella. If a product's back-order behaviour needs to change, it needs to be updated at the source. - Similar product suggestions are based on product family, spec attributes, and the customer's purchase history. 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