Many people confuse these two media buying methods as both terms carry "guaranteed" terms. It is worthwhile to know that both methods are executed programmatically, yet they differ in execution and the processes to seal the deal. With Automated Guaranteed, publishers decide what “packages” of their inventory to expose to the buyers and then negotiate on the price. At the same time, with Programmatic Guaranteed, advertisers get access to the full information about the inventory and the website’s audience and then decide what to make an offer for.