Cancel Back Order letter

A Cancel Back Order letter is a formal written notice from a buyer to a supplier requesting cancellation of the items on an order that are back-ordered or out of stock. The most common reason people use it is to stop waiting on undelivered goods after receiving a partial shipment and to get a corrected invoice. You can download this template free in PDF and DOCX with no signup required.

What Is a Cancel Back Order Letter?

A Cancel Back Order letter is a business correspondence document a customer sends to a vendor to cancel the portion of a purchase order that was never delivered because the items were on back-order or no longer in stock. It is typically issued by a purchasing manager, business owner, or accounts department and references the original order number. The letter documents the buyer’s intent in writing, requests a revised invoice reflecting only the goods actually received, and asks the supplier to make contact if the items have already shipped. It serves as a clear paper trail for both parties, protecting the buyer from being billed for products they no longer want.

When Do You Need a Cancel Back Order Letter?

This letter is useful any time delivery delays leave you holding an open order you would rather close out. Common situations include:

• You received a partial shipment and the remaining items are flagged as back-ordered with no firm delivery date.
• A supplier notifies you that certain products are discontinued or permanently out of stock.
• Your project timeline has changed and you no longer need the delayed goods.
• You have sourced the same items from another vendor and want to avoid duplicate deliveries and double billing.
• The original invoice charged you for the full order, and you need a corrected invoice for only what arrived.
• A seasonal or promotional need has passed, making the back-ordered merchandise unnecessary.

What a Cancel Back Order Letter Should Have

A complete and effective letter leaves no room for confusion about what is being canceled and why. The essential elements include your business name and full contact details, the supplier’s name and address, the date, and a clear reference to the original order number. It should acknowledge the partial delivery you did receive, state plainly that you wish to cancel the back-ordered or out-of-stock items, and request a new invoice reflecting only the goods delivered. Including a request to be contacted if the items have already shipped helps you head off unwanted deliveries. Finally, the letter should be signed by an authorized person and note any enclosure, such as a copy of the purchase order.

How to Fill Out a Cancel Back Order Letter

1. Replace the sample sender block (ABC Business, 123 Main St., Anytown, CA) with your own company name, street address, city, state, ZIP, and phone number.
2. Update the date line to the day you are actually sending the letter.
3. Enter the supplier’s name and address where the sample reads XYZ Supplier, 345 Any Place.
4. Keep the greeting as “To Whom It May Concern,” or address it to a specific contact or account representative if you know one.
5. In the body, fill in the [date] you received the partial shipment and the order # for the affected purchase order.
6. Confirm that the letter clearly states you no longer want the back-ordered items and that this is a formal cancellation request.
7. Leave in the request for a new invoice reflecting the delivered goods only.
8. Sign as the authorized person, replacing John Johnson, manager with your name and title.
9. Attach the referenced purchase order copy and confirm the “Enclosure” line matches what you include.

How to Send and Follow Up

Because a back-order cancellation can affect billing and shipping, send the letter in a way that creates a record. Email with a read receipt or a tracked mail service gives you proof of delivery and a timestamp. Keep a copy of the signed letter and the enclosed purchase order in your vendor file. Follow up within a few business days if you have not received an acknowledgment or a revised invoice. If the supplier indicates the items have already shipped, respond promptly to arrange a return, refusal of delivery, or restocking terms before the freight arrives.

How It Differs From a Full Order Cancellation

A Cancel Back Order letter cancels only the undelivered portion of an order while preserving the goods you already accepted. A full order cancellation, by contrast, voids the entire transaction, including items you may have received. Using the back-order version signals that you are satisfied with the partial delivery and only want to close out the delayed remainder. This distinction matters for invoicing: you are asking for a corrected bill rather than a complete refund, which usually makes processing faster and keeps your account in good standing with the vendor.

Common Mistakes to Avoid

• Forgetting to fill in the order number, which makes it hard for the supplier to identify which order to adjust.
• Omitting the date the partial shipment was received, leaving the timeline unclear.
• Failing to attach the purchase order copy referenced in the enclosure line.
• Not requesting a revised invoice, which can leave you billed for goods you canceled.
• Sending the letter without keeping a copy or proof of delivery for your records.
• Being vague about which items you are canceling instead of clearly limiting it to back-ordered or out-of-stock goods.

Frequently Asked Questions

What is a Cancel Back Order letter used for? It is used to formally tell a supplier that you no longer want the items from your order that are on back-order or out of stock. The letter creates a written record of your cancellation request and asks the vendor to issue a corrected invoice covering only the goods you actually received.

How do I fill out a Cancel Back Order letter? Replace the sample company and supplier details with your own information, add the date, and fill in the date you received the partial shipment along with the original order number. Then sign as an authorized person and attach a copy of the purchase order.

Does this letter need to be notarized or witnessed? No. A Cancel Back Order letter is routine business correspondence and does not require notarization or witnesses. A signature from an authorized representative of your company is generally sufficient.

Is a Cancel Back Order letter legally binding? The letter documents your intent and request, but the actual cancellation terms depend on the contract or purchase order you agreed to with the supplier. Review any restocking fees, cancellation windows, or terms of sale before sending, and keep the signed letter as evidence of your request.

What if the items have already shipped? Include a line asking the supplier to contact you immediately if the goods are already in transit. You may then be able to refuse the delivery, arrange a return, or negotiate restocking terms, depending on the vendor’s policies.

How much does this template cost? Nothing — this Cancel Back Order letter template is completely free to download in PDF and DOCX from Business Forms Pro, with no signup or payment required. You can edit it in your usual word processor and reuse it whenever a delivery falls short.

This template is a general example provided for informational purposes only and is not legal, financial, or business advice. Cancellation rights and supplier obligations vary by contract and jurisdiction — review your purchase agreement and consult a qualified professional for guidance specific to your situation.

Official resource: for the rules that apply to your situation, see the U.S. Small Business Administration.

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