COVID-19 vaccine introduction proved that alternate training and supervision methods are possible. With restrictions around social distancing, the rapid availability of a new vaccine, and the urgency of vaccinating non-traditional populations, immunization staff found creative solutions to capacity building, often using alternate delivery methods for the first time. On May 10, 2023, MOMENTUM Routine Immunization Transformation and Equity project held a webinar to share findings from their recent landscape analysis and practices for fostering innovations in health worker capacity building over the long term.