Since 2022, the University of Michigan Medical School Communications Community of Practice (CoP) has been successfully navigating the collaboration and support of more than 90 unit-embedded communicators to develop partnerships, ensure access to resources, and embolden a unified voice, brand, and message across the Michigan Medicine landscape. In this presentation, we will use this case study to define a CoP, discuss the challenges of start-up, and walk through the steps toward implementation, success, and lessons learned. Participants will take away practical steps and resources for building a Community of Practice, methodology for connecting your community to the larger centralized communications core, and ideas for scaling communities to all sizes of teams.