Hello,
I just implemented the telegram reminder functionality by using inline_keyboard (see Telegram bot notifications and communication). I using exact the same code, modified with my settings.
When I set the reminders (30 Minutes, 1h, 3h) and click on one of the buttons in the telegram chat, I get the following error message:
“Incoming message is not allowed”
Anything missing? Do I need Webhooks or is there something which I have to configure so that telegram is able to communicate wit HA? Maybe I have to allow something?