It seems that successfully activating modules is depending on the order followed to activate them. I need sales + account_be but I have to made more than 5 attempts with a fresh database to have them all visible on the left menu.
Finally the way to successfully activate them is to mark them for activation all together on a fresh install, but activate them one by one is not working properly. This is not documented I think, and probably a bug? Are you aware of this behavior and is their a place to document this?