Klarna Installments

You can implement Klarna Installment payments, whether you are using HPP integration, or the API integration.

The customer agrees on an installment plan with Klarna. Klarna can configure different type of installment plans, such as flexible installments, fixed installments, or "buy now pay X months later". For the purposes of integration, these function the same.

  • For HPP integrations: follow the same implementation process as open invoice. 
  • For API integrations: follow the same implementation process as open invoice, but include the following additions:
    • selectedBrand - set the value to klarna_account
    • additionalData - add ‘openinvoicedata.installmentConfigurationKey’ and include Klarna’s pclassid for the installment plan.