# Back Order {% hint style="success" %} A backorder is left over products that did not get shipped on the original order. {% endhint %} Back Orders are typically auto created either by your ERP or by P4 Warehouse. In rare situations the process is ship and cancel, in this configuration there will be no back order generated. Ship and Cancel is common in the food industry. A backorder will look like a normal Pick Ticket however, in the numbering scheme you will notice a \_1 or \_2 in the order number indicating the version of the backorder. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.p4.software/p4warehouse-english/fulfillment-setup/pick-ticket-creation/back-order.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.