In December 2021, under the auspices of the Olympic Games, the Nutrition For Growth Summit (N4G) will take place. This high-level event, hosted by the Government of Japan, will celebrate the N4G commitments made throughout the year and announce final financial and policy commitments, looking ahead to 2030. The Summit outcomes will be enshrined in the 2021 Compact designed to accelerate the achievement of the objectives of the U.N. Decade of Action on Nutrition and the Sustainable Development Goals (SDGs). On March 31, 2021, Healthy Mothers Healthy Babies Consortium (HMHB) hosted a workshop webinar to help create an advocacy agenda for multiple micronutrient supplementation (MMS) and maternal nutrition, including engagement and joint action with the maternal health sector, and commitments for MMS at N4G. Following this workshop, using inputs from participants, HMHB produced an N4G Commitment Guide to support the sector in getting more engaged in the event. This guide will help MMS stakeholders in planning for policy, program, and financial commitments for MMS at N4G. This document will be updated regularly.