Root Cause

• Data mismatch between systems: The transaction data shared between the gateway and the processor is inconsistent or incomplete.

• Incorrect or outdated transaction references: Transaction IDs or authorization codes provided in the request do not match the processor's records.

• Partial transaction updates: An earlier attempt to process or update the transaction was interrupted, resulting in incomplete or conflicting data.

• Integration or API issues: Errors in how data is passed between the merchant system, gateway, and processor caused inconsistencies.

Troubleshooting and Solutions

• Verify all transaction-related details (transaction IDs, payment method tokens, authorization codes) before retrying.

• Ensure that the system sending transaction data is using up-to-date and accurate information.

• Contact the payment gateway support team to investigate and reconcile any discrepancies in transaction records.

• Implement safeguards to prevent incomplete or conflicting data submissions in transaction workflows.

• Advise the customer to wait for confirmation before retrying to avoid potential duplicate charges.