Testing and Troubleshooting

What does the processing error code 'PICKUP_CARD' mean and how is it resolved?

What is the simplest way to make test payments?

How can I test payments for Credit or Debit Cards, ACH Debit or EFT Direct Debit payment methods in Sandbox?

How are 401 error codes resolved?

What are some examples of specific failure codes that we can simulate in Sandbox?