I followed this guide for adding vocal interaction to my Rasa bot using Aimybox.
Everything works fine except for the reminders. They are sent by my bot, I actually see them on my conversations in Rasa X, but they don’t display on Aimybox.
Proactively reaching out to the user is dependent on the abilities of a channel and hence not supported by every channel. If your channel does not support it, consider using the CallbackInput channel to send messages to a webhook.
This is a technical limitation by REST, you have to use some sort of channel who knows how to reach a user.