Thanks for raising this issue, @dakshvar22 will get back to you about it soon✨

Please also check out the docs and the forum in case your issue was raised there too 🤗

Would this help?
https://rasa.com/docs/rasa/connectors/mattermost/

Thanks @HotThoughts I forgot to mention I already did the steps there but even if I get no error, the bot is not communicating with the mattermost. So I was hoping for a recent example of working context. I tried the debugging techniques in the https://forum.rasa.com/t/mattermost-channel-debugging/19596 but https://forum.rasa.com/t/mattermost-channel-debugging/19596/18?u=mihai-satmarean this is the result.
Additionally I followed this:RasaHQ/rasa#3311 ticket which got me closer

It may be a little thing but I am stuck.

Any hint is appreciated!

Finally I was able to connect the bot to mattermost. I cannot say exactly what was the issue as I let it there for almost a year, and then just started poking at it again.