The data a school holds is unusual: information about children, held with the consent of parents, shared with teachers, processed through a dozen third-party platforms, and retained for years beyond the student's time at the school. Every decision about access, sharing, retention, and deletion involves someone who didn't consent directly. That's why the paperwork matters; the paperwork is the consent chain made durable.
The technical pattern is standard-ish: a Microsoft 365 tenant, a student information system, a learning management system, a mixture of school-owned and BYOD devices, a filter somewhere, a backup somewhere, and several dozen specialist platforms accumulated over the years. The issue is rarely the platforms themselves; it's that no one has ever audited the whole shape and made it cohere.
We run that audit as part of onboarding, sequence the clean-up against term dates (some things can't move during reports, some things can't move during exams), and hand you a clean register of who holds what, who can access it, and how you'd prove it in a Child Safe audit.