@mystical_ghoul – Can you please provide more information about this question. Are you asking how to get an order to auto-capture in Klarna once the order has been placed? If so, your Klarna Payments contract must include approval for auto-capture, but that is not recommended for most merchants. Because of this, the Woo KP plugin does not include a configuration setting to auto-capture Klarna orders.
The plugin also does not automatically change the order status in Woo from Processing to Completed. That is expected to be done manually by a Woo admin (or appropriate separate plugin if desired).