What does the Pending resultCode or authResult mean?

If you receive Pending or Received in resultCode in the payment response (in the our classic integration, this field is called authResult), it means that it is not possible to obtain the final status of the payment at the time. This can happen if the systems providing final status information for the payment are unavailable, or if the shopper needs to take further action to complete the payment.

For example, for all payments which are done via a bank transfer, the status will always be Pending or Received until we get the funds.

Your integration should be able to handle the Pending or Received resultCode and rely on webhooks to obtain the final authorized status.