What is the fine-grained topic of the following text: Tune in on April 30th to hear from three D2C veterans including The Street's Head of Acquisition and Retention Jill Marchisotto, Amazon Pay Head of Global Marketing Leah Holzman and Zuora GM of Product Kyle Kolich, for a virtual roundtable discussion to hear how they are quickly adapting their business strategy to meet the changing needs of their customers and accelerating subscriber growth. Only return the topic.
Virtual roundtable discussion featuring D2C veterans on adapting business strategies for customer needs and subscriber growth.