A vaccination campaign aimed at over 726,000 children under five was conducted in the accessible areas of the Banadir, Lower, and Middle Shabelle regions. The initiative was supported by around 3,500 personnel, including vaccinators and social mobilizers, and employed the ODK platform for effective data management. To maintain accuracy and timeliness in reporting, more than 200 supervisors and monitors were trained on this data collection tool. The campaign primarily focused on addressing communicable diseases.