Root Cause

• Duplicate capture attempt: The system attempted to capture funds for a transaction that has already been successfully captured.

• Incorrect transaction workflow: The merchant system retried a capture on a completed transaction due to an error or misconfiguration.

• Delayed response handling: A delayed acknowledgment from the payment gateway caused a repeated capture attempt.

• Manual capture already processed: The transaction was previously captured manually, but the system initiated another capture automatically.

Troubleshooting and Solutions

• Verify the transaction records to confirm that the payment has already been successfully captured.

• Inform the customer that the payment was processed successfully and no further action is required.

• Prevent duplicate capture attempts by reviewing and correcting the payment workflow logic.

• Contact your payment gateway support if system-level retries or delayed acknowledgments are causing repeated captures.

• Implement safeguards to ensure transactions marked as captured are not processed again.