AWS IOT and ALEXA integration for devices of different manufacturers -- 2

We produce a device based on ESP32 sending data to AWS IOT. We can program our device and change transmitted data and AWS behaviour (topics, shadows, lambda …) We have to integrate this in an overall ALEXA system where there are other devices of other manufacurers SONOFF relays And WIFI sockets as the following [login to view URL] We have to switch on and off these device with some rules based on data sent by our device. The pairing and configuration has to be easy and quick for the user