How to Create a Packing Slip That Speeds Up Fulfillment and Cuts Returns Disputes
By the Super Simple Digital Tools Team · Updated June 2026
If you ship physical products, the packing slip is the cheapest quality-control tool you have. It sits inside the box and answers one question for everyone who touches the order: are the right items, in the right quantities, actually here? That makes it different from the two documents people often confuse it with. A shipping label is the carrier's external sticker that tells the courier where the parcel is going. An invoice is the financial record that tells the buyer what they owe. The packing slip ignores money entirely and focuses on contents, which is exactly why it is useful at the moment a box is being packed and again when it is opened.
Start with the header. Put your business name and contact details at the top, then the recipient's shipping address, and a clear order or slip number with the date. The number matters more than it looks: when a customer emails to say an item is missing, that single reference lets you pull the original order and the slip side by side and settle the question in minutes instead of guessing. If the order was split into multiple boxes, give each its own slip so nobody assumes the whole order failed when only part of it shipped.
The body of the slip is the itemized list. For each line, record a short product description, the SKU or UPC, and the quantity shipped. SKUs are not decoration; they are the unambiguous identifier your warehouse and supplier use, and a description alone is easy to misread when two variants look similar. If something the customer ordered is out of stock, list it on the slip as not included rather than silently dropping it, so the recipient knows to expect it later or reorder. Crucially, leave out any price column. The absence of cost is a feature, not an oversight, and it is what lets the same slip ship safely in a gift order.
Treat the slip as a checklist, not just paperwork. The standard fulfillment habit is to print the slip first, then physically pick and pack against it, ticking off each line as it goes in the box before sealing. This catches the single most common error in shipping: a wrong quantity on a multi-item order. The customer then performs the same check on delivery, and because the slip stays in the box, it becomes the natural document to include with a return, where it speeds up matching the returned goods to the original order.
Once you have a layout that works, keep it consistent across every order. A predictable slip means your packers know exactly where to look, your customers recognize it, and your returns desk can process it without hunting for an order number. Generate the slip, print it on plain paper, and place it inside the parcel, or in a clear pouch on the outside if you need it visible. The whole point is a document that is accurate, readable, and tied to a number you can look up, so a sealed box never becomes a mystery.
- Print the slip before you pack, then check off each line item as it goes into the box, so a wrong quantity is caught before sealing.
- Always include the order or slip number so missing-item questions can be resolved against the original order in seconds.
- List out-of-stock items on the slip as not included rather than removing them, so the recipient knows to expect or reorder them.
- Never add a price column; the lack of cost is what makes the same slip safe to use for gift orders and clean for returns.