The OCT is created when you create an Optimize session. When you run an
Optimize session,
Optimize analyzes the PCT (populated by
Campaign) using the optimization rules and constraints you configured.
Optimize populates the OCT with optimized contacts and their associated offers during this process.
Campaign then retrieves the results from the OCT for use in a marketing campaign. The OCT is composed of a subset of the PCT fields, and a field for the score used for optimization (that is, the score being maximized).