Hi Chris and Chegewara,

Thanks for your kind reply. Yes, I see that queue is a handful solution for this situation. I also like the idea to define my own struct which represents only the necessary information.
Thanks for your kind help again.
Best regards,
Blaise

Hi, I'd like to pass the payload (event->data and event->topic) to a task from the mqtt_event_handler. The event handler receives a pointer to the struct esp_mqtt_event_handle_t and it can be processed in the event handler itself. In my understanding this event handler is kind of call back function ...