Discover Reason Code UA01: Fraud, Card Present

What Discover reason code UA01 means

UA01 is Discover’s fraud code for card-present transactions: sales where the physical card was used at a terminal in your store, restaurant or event. The cardholder tells their issuer they didn’t make the purchase, usually because the card was lost or stolen.

UA01 rarely applies to ecommerce. Online, phone and mail orders are card-not-present, and fraud claims on them come through as UA02. If an online store receives UA01, the most likely explanation is that the transaction was sent with card-present data by mistake, for example a misconfigured gateway or a phone order keyed into a countertop terminal. Ask your processor how the transaction was flagged. That affects both your evidence and the rules that apply.

Counterfeit chip cards and chip-and-PIN fraud have their own codes, UA05 and UA06.

Common causes

• A lost or stolen card used in store before the cardholder reported it
• A card number keyed in by hand at a terminal without an imprint
• A family member using the card and the cardholder not recognizing the purchase
• Online or phone orders submitted with card-present entry data

Evidence that wins a UA01 dispute

1. Terminal entry data: the record showing the card was read by chip (or contactless), not keyed.
2. Authorization approval: the approval code, date and amount.
3. Receipt: a signed or electronic receipt where your setup captures signatures.
4. Imprint for keyed sales: if the number was keyed, a manual imprint showing the card was physically present.
5. Supporting material: CCTV stills, staff notes or loyalty account use at the same visit. These help but rarely win on their own.

How to prevent UA01 chargebacks

• Use chip-capable (EMV) terminals and keep them updated, and avoid keying card numbers at the counter.
• Train staff to check that the card and customer look right on large purchases.
• Make sure your ecommerce and phone-order flows submit transactions as card-not-present.

Should you fight or accept?

Fight when the terminal record shows a chip read with a valid authorization, or a keyed sale backed by an imprint.

Accept when the card was keyed without an imprint, or swiped when it should have been chip-read. Those transactions are hard to defend.