Whenever a bank is not available, a webhook will be sent to notify all the endpoints subscribed to this bank service.
A bank can usually be inactive if they are in maintenance, which could cause issues reaching the bank’s APIs or delays in their responses. So your users don't have a bad experience, we disable them until they are confirmed working again.
If you are handling the bank list rendering on your side and as soon as your backend receives a “bank.availability.updated” with “active” set to false, you should show it disabled (greyed-out) with a little disclaimer mentioning that the bank is currently unavailable.
If you don't show your own generated bank list to. the customer, there is nothing you need to do. The SDK handles this in our bank list automatically.