A01 – Charge Amount Exceeds Authorization Amount

Chargeback Reason Code

A01

Category

Why did I get a chargeback with American Express reason code A01?

The amount of the authorization approval was less than the amount you charged the card.

What do I need to fight a chargeback with American Express reason code A01?

Your chargeback response must include at least one of the following items:

  • If you processed the transaction correctly, provide an authorization approval for the full amount or proof that the purchase was an exception to the rule.
  • If you have already processed a refund for the transaction in question, provide documentation that proves you have credited the cardholder’s account.

How can I avoid a chargeback with American Express reason code A01 in the future?

  • Don’t change the amount of a transaction once authorization has been requested and approved.
  • If you add gratuities to transactions, don’t exceed the acceptable limit.

More American Express Reason Codes

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