I registered at AWS and got 5 certs, which is the dev kit sw asking for? what is the thing certificate that i am asked for?

I am trying to use the WWDG EWI on the STM32F051. I can force the WWDG reset, but never seem to get the Early Warning Interrupt. I am setting EWIMode to WWDG_EWI_ENABLE when calling HAL_WWDG_Init(). I am trying to verify the interrupt by stopping the...