"A few years ago, IT managers of companies selling on marketplaces preferred to build their own marketplaces integrations. They didn't want to be dependent on an integrator. Over time, however, they saw that they had introduced an even greater dependence on a company critical integration. In practice, they were dependent on 1 or 2 people within the organization for the link. Whereas with an integrator there is a much larger team involved in these things. So the dependency is less when you engage a marketplace integrator!"
