Currently there are two portal options to update the endpoint for a Teams Bot:
How can we update this from the command line / with code?
I'm aware of the az bot commands (https://docs.microsoft.com/en-us/cli/azure/bot?view=azure-cli-latest) but this appears to be for managing resources deployed under 'Bot Services', and not bots created via the 'Bot Framework'.
Thanks.
I had a chat just last week with someone else about this - see How to add authentication to a Bot Framework v4 project without Azure Bot Service?
In essence, the "bot portal" is basically just provisioning things for you behind the scenes in the Azure portal in any case - I'd suggest rather just doing everything in Azure directly. In any, the Microsoft Bot "Framework" conceptually consists of two pieces - code samples + SDKs, and a backend core service that underlies every bot. As a result, bot "Framework" bots also have a "Bot Service" backend. Note that, by itself, this does not include hosting for the bot, just a central service registration to handle the traffic routing, security, etc.
Please have a read of the blog post I refer in that other question - it (hopefully) gives a good overview.
In answer to your question directly - az bot should be fine to use, specifically https://docs.microsoft.com/en-us/cli/azure/bot?view=azure-cli-latest#az-bot-update
