Why it happens
- The currency code sent did not match the price shown.
- Currency conversion was applied without the cardholder’s choice.
Mastercard4846Processing error
Correct Transaction Currency Code Not Provided
The transaction was processed in the wrong currency, or a currency conversion was applied without the cardholder agreeing to it. Mastercard now files this case under 4834, but the code still appears.
What to send to fight it
- The checkout page or receipt showing the currency the cardholder agreed to.
- Proof the cardholder chose currency conversion, where it was offered.
- The transaction record showing the currency code used.
How to prevent it
- Charge in the currency displayed at checkout.
- Make any currency conversion an explicit choice for the cardholder.
Summaries written by NoChurn from the networks’ public rules and processor documentation. Networks update their rules and deadlines depend on your processor: check its documentation before you respond.
Other Mastercard codes
- 4808Authorization-related Chargeback
- 4837No Cardholder Authorization
- 4840Fraudulent Processing of Transactions
- 4849Questionable Merchant Activity
- 4863Cardholder Does Not Recognize—Potential Fraud
- 4870Chip Liability Shift
- 4871Chip/PIN Liability Shift
- 4834Point-of-Interaction Error
- 4831Transaction Amount Differs
- 4842Late Presentment
- 4853Cardholder Dispute
- 4854Cardholder Dispute—Not Elsewhere Classified (U.S. Region Only)
- 4841Cancelled Recurring or Digital Goods Transactions
- 4855Goods or Services Not Provided
- 4859Addendum, No-show, or ATM Dispute
- 4860Credit Not Processed
- 4999Domestic Chargeback Dispute (Europe Region Only)
Sources (1)
- Mastercard Chargeback Guide, Merchant Edition (19 May 2026) · checked 2026-11-09
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