Shipping Methods in iframe
If you are using a shipping plugin that have additional shipping options for the customer, such as (but not limited to) pick up point selector or timeslot options for delivery, the Shipping Methods in iframe option in the Klarna Checkout settings can not be activated.
This is because this data is not transferred to Klarna and therefore not possible to display within the iframe.
Third party plugins
Please note that these are the plugins that have been brought to our attention by users. In theory, any plugin with additional shipping options could be on this list.