This report represents another installment in our Learning and Employment Records (LERs) series, where we explored the unique challenges and opportunities that learners encounter when familiarizing themselves with LER technology. As the paradigm shifts towards skills-based hiring and career advancement gains momentum, it becomes imperative for technologies like LERs to provide a transparent, user-friendly, and accessible onboarding experience. Digital Promise collaborated closely with historically and systematically excluded (HSE) adult learners and workers, including those facing economic hardship and multilingual learners, to establish a set of onboarding design principles. These principles are designed to ensure that LERs are crafted in ways that actively engage a diverse range of users.