Feedback is a major factor of student success within higher education learning. However, recent changes-such as increased class sizes and socioeconomic diversity of the student population-challenged the provision of effective student feedback. Although the use of educational technology for personalised feedback to diverse students has gained traction, the feedback gap still exists: educators wonder which students respond to feedback and which do not. In this study, a set of trackable Call to Action (CTA) links was embedded in two sets of feedback messages focusing on students' time management, with the goal of (1) examining the association between feedback engagement and course success and (2), to predict students' reaction to provided feedback. We also conducted two focus groups to further examine students' perception of provided feedback messages. Our results revealed that early engagement with the feedback was associated with higher chances of succeeding in the course. Likewise, previous engagement with feedback was highly predictive of students' engagement in the future, and also that certain student sub-populations, (e.g., female students), were more likely to engage than others. Such insight enables instructors to ask "why" questions, improve feedback processes and narrow the feedback gap. Practical implications of our findings are further discussed.