Discover Payment Decline Code
Discover Decline Code 77: Invalid or Nonexistent From Account
Category Invalid Payment DataRetry Guidance Conditional Decline (Editorial Classification)By Payment Defender Editorial TeamUpdated July 17, 2026Last reviewed July 17, 2026
What Discover Decline Code 77 Means
Discover decline code 77 (Invalid or Nonexistent From Account) indicates that the source ('from') account is invalid or does not exist.
Where the Response May Come From
Code 77 means the source ('from') account specified for the transaction is invalid or does not exist. Like other account-data conditions, the processor response and the submitted details are the reference.
Common Reasons for This Response
Common causes include an invalid or nonexistent source account in the request.
Should the Merchant Retry the Payment?
A retry succeeds only with a valid source account; resubmitting the same invalid 'from' account returns code 77 again.
Recommended Merchant Action
Verify the source account details, correct them, or ask the customer to confirm the funding account before reattempting.
What to Tell the Customer
Ask the customer to check the funding account details and try again, or use a different account.
How to Reduce Similar Payment Failures
Validating source-account entry in transfer and funding flows helps prevent code 77 from invalid or mistyped 'from' accounts.
Important Limitations
Decline-code meanings vary by processor, gateway, and payment environment, and issuers do not always disclose the specific reason behind a response. The retry classification on this page is Payment Defender editorial guidance, not an official network rule. Merchants should confirm handling with their processor or gateway.
Related Decline Codes
Sources and Review Information
Last reviewed July 17, 2026
Raw network-response codes are supplemental to the complete processor or gateway response. Meanings and recommended actions can vary by issuer, processor, gateway, card network, payment method, region, and merchant configuration.