Every record in BlossomERP carries an Activity tab (1.4), and it is one timeline, not two: the system events — created, approved, posted, reversed, closed, each with who and when — and the human conversation around the same record: notes, mentions and follow-ups, in the order they happened. For the administrator it is the first, and usually the last, tool of investigation: "who changed this bank's account number?", "who approved this, and when?", "why was this period reopened?" are answered from the record itself, by the people involved, without a ticket to anyone.
Some entries deserve an administrator's specific attention. Subscription and plan changes are recorded on the subscription's own history (Chapter 15). Platform visits are recorded at both ends: if the platform team ever signs in as one of your users (16.1's boundary), the trail names both people and the company — impersonation is a support tool, never a silent one. And sensitive platform changes, like payment-gateway credentials, log the field names that changed and never the values: the trail proves a change happened without becoming a copy of the secret.
The trail is kept according to your plan's retention settings (Chapter 15), and audit records are among the things a suspended company can still export (16.7).