Iways PaypalPlus

1. Disable all third-party checkout modules in app/etc/modules folder except Firecheckout (Idev_OneStepCheckout, Magestore_Onestepcheckout, AnattaDesign_AwesomeCheckout, Amasty_Scheckout, IWD_Opc).

   Iways module uses runtime integration and if some module is found, it uses integration with this module. This may completely brake PayPalPlus logic.

2. Navigate to System > Configuration > TM Checkout > Firecheckout > Ajax save and reload rules and add Order Total option to “Payment methods depends on” config: