There are multiple ways to monitor your bot monthly usage. The easiest way would be to use the analytics api and save the number of messages in your own system. https://botpress.com/docs/api-documentation/#get-bot-analytics You can also do it using a hook like you tried to do. With the restriction in google sheet, this is probably not the best option to store the result. To store the message count, you could also use the new table feature in Botpress.