If access is going to change,
archive before it does.
Closing an old account, leaving a job, shutting down a business, switching providers, cutting a storage bill, or losing a company login all create the same timing problem: the safest moment to preserve authorized history is while the source still works. The details differ, so use the path that matches your situation.
What should usually be on the transition checklist?
The exact answer depends on the source and your rights to the records, but these are the recurring categories.
Email and attachments
Approvals, receipts, contracts, introductions, old addresses, decisions, client history, attachments, and conversations often become valuable only after the account is gone.
Files with context
Keep important files with enough path, naming, date, and provider metadata to understand what they are later.
Meetings and recurring commitments
Calendars can preserve the shape of work and relationships in ways that a raw file folder cannot.
People and organizations
Correspondence can become a private relationship history, but work/company data still requires the correct authorization boundary.
Verification before closure
The preservation workflow is only complete when you have checked that the records you care about are usable from the archive.
Security and ownership
Provider permissions, tenant isolation, deletion, source ownership, and model processing matter more during transitions because the records are often sensitive and the decision can be irreversible.