Abstract: Enhanced systems, processes, tools, techniques and strategies are provided for executing corporate entity changes between or among institutions, particularly with respect to minimizing the negative effects of the corporate change on customers of the institutions. In various embodiments, a method is provided for determining a wave assignment for a customer in connection with multiple waves of the corporate change. The method may include establishing a baseline wave assignment for customers of the acquired institution based on customer account data; determining lines of business associated with the customer account data; and, applying wave assignments to the customer account data in response to the baseline wave assignments and the lines of business, among other potential factors.