If its your turn you message the bot with your update.
Everytime you put and update, it adds the update to the database. When the send endpoint is invoked, it grabs the most recent update sent in the last 24 hours.
You should never do this by hand. This is called daily by an AWS cloudwatch event. It sends the update to The Whole Family group chat.
If you ever get a 500 response, that is a bug. Please message me on telegram.