This is a question I get asked very often. Many understand that Persuasion Strategies and Techniques must work and are working in the B2C environment, as you target the brain of a unique profile (like the young adults, fan of high-tech, in the mobile world, in Europe). And as such can “easily” define the frustrations.
In B2B it is the same process except that you often have more than one decision maker (such as a CFO, a CIO and some technical managers). Well, surprisingly these people do have a brain and their respective brains have subconscious frustrations you want to remove.
In B2B you will have to know perfectly who the decision makers are, just as in B2C and work on the overlapping areas of these frustrations.