A. To troubleshoot payment processing failures, first check the payment method settings in your Adyen account. Ensure that all payment methods are correctly configured and that there are no restrictions on the payment types you are trying to process. Additionally, verify that your account is in good standing and that there are no outstanding issues with your payment processor.
B. Implement a retry mechanism in your application to handle temporary payment failures. This can involve automatically attempting to process the payment again after a short delay, which can help in cases of transient issues.