thanks a lot for your input. However, I think you misunderstood my post. We build an enterprise system, which is used by other companies. Users cannot sign up for an account, it’s given when the company they work for buys our system. Therefore, we do not control how much time they spend in the system. Customers do not search for products as the only product we have is our enterprise system. No blog posts or social media for the same reason.
When it comes to sales, it would be about seling as many licences as possible. And yes, red routes might eventually support sales team. The main purpose, though, in this case is determining what are tops tasks/red routes of the users so they go on with their business as usual. Meaning, which parts of the system should be deveoped in the first place. Bug related to which tasks should be solved in the first place.
Your advice is helpful and I am very grateful, however, the system is huge and suggesting three or four will not suffice. The list of top tasks might be divided per each module of the system (e.g. project management, invoicing, reporting, etc). This is a much more complicated situation. Also, each of the teams i want to invite to the workshop wil have a different view on which tasks are the top ones. I am afraid that a simple discussion will end in a bigger chaos and maybe conflicts of interests.