Timely primary care enrolment of children is important for universal standard care, including immunisation. Currently, there are gaps in both initial newborn enrolment and subsequent completed and continued enrolment. This report highlights the opportunity of using whole of system information via data linkage and auto-population to support PHO enrolment process. The report also includes a number of recommendations for system changes that could lead to a more timely and complete enrolment of newborn babies.