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  1. Understanding Decline Codes
✔ Decline codes help identify the reason for failed transactions. ✔ Each payment processor has its own list of decline codes. ✔ Understanding decline codes helps merchants troubleshoot and improve transaction approval rates.
  1. Processor-Specific Decline Codes
Below are links to official processor documentation for detailed decline code lists: 🔹 Worldpay Decline Codes: Worldpay Decline Codes 🔹 Nuvei Decline Codes: Nuvei Decline Codes 🔹 Adyen Decline Codes: Adyen Decline Codes 📌 For additional assistance, refer to each processor’s documentation or contact support.
  1. Common Decline Code Categories
CategoryDescription
Insufficient FundsThe cardholder’s account does not have enough balance to complete the transaction.
Expired CardThe credit/debit card used has expired.
Incorrect Card DetailsThe card number, CVV, or expiration date is incorrect.
Fraud SuspectedThe transaction was flagged due to unusual activity.
Processor DeclineThe payment processor rejected the transaction for unspecified reasons.
Merchant RestrictionsThe merchant is not allowed to process payments in certain regions or categories.
Billing Address