Sales cycle for this kind of software is really long - very often timeframe from the first contact to subscriptions purchase is up to year. I'm not talking about cloud-version paid users, this is about installations. Also, users that contact on technical things / purchases are not users that made a decision (= who finds the solution).

In these conditions, I simply cannot determine what channel works and in most cases, I've no full information on how existing customers found SeekTable.