National and sub-national stakeholders were engaged to define priority skills for training and develop lessons. Implementation was conducted across health facilities offering routine immunization in Nasarawa local government area, Kano state and Keffi local government area, Nasarawa state from February to May 2022. Onboarding training of the IA Learn app and pre- and post-pilot assessment were conducted for HCWs to assess gaps in data quality at health facility and competency of healthcare workers on topical areas. The curriculum included video-based lessons, quizzes, and practice exercises to address knowledge and skill gaps in data collection, reporting, and use. Managers monitored progress using a custom dashboard to prioritize health facilities for supportive supervisory visits and on-the job mentoring.