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Yes, you can fax a purchase order to a vendor that accepts faxed orders, and many suppliers still do, especially in manufacturing, wholesale, and government purchasing. Include the vendor name, your purchase order number, item descriptions with quantities, ship-to and bill-to addresses, delivery terms, and an authorized signature, and keep the fax confirmation as proof the order was sent.
Yes, for vendors that list a fax number for orders. Faxed purchase orders remain common where a buyer needs a signed, dated order document with a transmission record, or where a vendor's ordering system was built around fax intake. Some vendors process faxed orders the same day they arrive, while others enter them manually, so a faxed order can take longer to appear in a vendor's system than an emailed or portal order. If timing matters, call the vendor after faxing to confirm the order was received and entered.
Faxing also suits orders that need a signature. A purchase order signed by an authorized buyer, faxed to the vendor, gives both sides the same document: the buyer keeps the signed original, the vendor holds the faxed copy. That matters for audits, since auditors can match the fax confirmation, the vendor invoice, and the delivery record to the same purchase order number. For that reason, some organizations still require fax or a signed scan for orders above a certain value, even when smaller orders go through a portal.
A purchase order that a vendor can process without calling back needs every field filled in. Missing quantities, missing delivery addresses, and unclear item descriptions are the three most common reasons faxed orders stall. Item descriptions should match the vendor's catalog or quote where possible, including part numbers, sizes, or model names, so the vendor does not have to guess which product you meant.
Include a purchase order number on every page, not just the first, since fax pages can separate in a vendor's inbox. Put the vendor's fax number, your company name, and a contact name with a phone number on the order, so the vendor can call with a question instead of holding the order. If the order is tied to a quote, reference the quote number and date, so the vendor prices it as quoted rather than at list.
| Field | Why it matters | Common mistake |
|---|---|---|
| Purchase order number | Links order, invoice, and delivery | Number only on page one |
| Item and quantity | Vendor picks the right goods | Vague description, no part number |
| Ship-to and bill-to | Goods and invoice go to the right place | Only one address given |
| Delivery date and terms | Sets expectations for both sides | No date, leaving timing open |
| Authorized signature | Shows the order is approved | Unsigned order held for approval |
Fax gives you a transmission report showing the number dialed, the pages sent, and the time, which is a simple form of proof that email does not always provide in the same neat form. Email gives you a searchable copy, faster delivery to a named person, and easier attachment of catalog pages or quotes. For a routine reorder with a vendor you trust, either works. For a first order, a large order, or an order with a tight delivery deadline, fax plus a confirmation call combines the paper trail of fax with the speed of a direct check.
One practical warning: fax quality matters for numbers. A faint fax can turn a quantity or a part number into a guess, and vendors will sometimes hold an order rather than ship the wrong item. Print the order in dark ink, use a clean font, and avoid handwriting numbers on the side. If the order is long, number the pages ("page 1 of 3") so the vendor can tell at once whether a page is missing.
Fax through LetterAgent is available in testing, for US and Canadian fax numbers only, with no inbound faxes. Never promise or expect that a fax sends on a particular day while testing is in progress: activation is still under way, and delivery timing is not guaranteed. When you use the service, you describe the fax to your AI assistant, approve the exact quoted total, and pay with a one-time payment. For a purchase order, keep your signed original and the confirmation record, and call the vendor to confirm receipt, especially for time-sensitive orders.
Ready to fax it? Fax with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is sent.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
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