Hi everybody and welcome to the Mattermost forums mike,
with regards to the feature request: Are we also talking about a permanent update of those categories and channels, basically keeping them in sync with a template you define and want to manage or should this just be used for the initial deployment on new user accounts?
There are API calls available for preconfiguring a user’s experience and while there is no platform integrated way to do that as of today, I think it’s pretty easy to hack something together which does exactly that that could be run periodically, but I think it also depends on how your users are being created.
Will they be created by you or is that a self-signup where they need to immediately have the correct config right after the first login?