Many foundations and large nonprofits face the challenge of establishing monitoring, evaluation, accountability, and learning (MEAL) systems that suit internal stakeholders’ varied interests. For example: executive and headquarters staff often want MEAL to be standardized across different contexts, whereas field staff and program participants often want MEAL to be customized to their specific context. How do foundations and large nonprofits strike this balance? This panel presents examples from CARE International and Catholic Relief Services, two humanitarian and development nonprofits that each operate in 90+ countries. Within the past few years, several MEAL communities of practice (CoPs) have materialized within these organizations at global, regional, and program-area levels. Our panel will describe how these CoPs originated, grew, and have helped improve the utility of MEAL systems for different stakeholders. We will then explore the looming challenges to resolve fragmentation and minimize duplication of efforts.