How to avoid “Sorry, my bot code is having an issue” in Microsoft Bot Framework

Question

I have a bot that runs on Azure + Bot Framework + LUIS (via LuisDialog).

If the user happens to send two messages in a quick succession (before the bot has a chance

Answer 1

When you get an 403 or 429, it could be "out of quota" or "Too many request" respectively, in the first case you must create a key again and asign to your LUIS App, the first-1000 endpoint queries are free and it will be refreshed every month, you must use it wisely or you have to use a Paid tier.

For the second case you have also a limit for the request, see the Boundaries documentation

Here you can find Microsoft documentation about this.