The way I've always heard this is: If it's important, it needs to have a URL. Your issue tracker works, assuming you're not constantly changing your tracker.

The way I've always heard this is: If it's important, it needs to have a URL. Your issue tracker works, assuming you're not constantly changing your tracker. SharePoint may work but is super clunky for this purpose. Confluence or Notion or something work just fine. Email doesn't work by itself. With some mailing-list interface on top it may, but that seems like you're stretching a bit. IM/IRC/Slack/whatever chat also don't work for this purpose. I always think: if I want to put a link to this project's design docs, maybe some meeting notes, so new hires can come up to speed on what we're trying to do, I want it to be a URL that makes some kind of human sense, and I want the format to be conducive to communicating the right details.