Audit log & traceability
Who changed what and when?
As soon as several people work with real business data, traceability matters. An audit log records the relevant changes — a seamless trail you can rely on when a question comes up.
Why this is important
For internal control, for clearing up misunderstandings (“who changed the price?”, “when was the order cancelled?”) and for compliance. For sensitive matters — finances, personal data — a traceable history is often even mandatory.
What's logged
Who (which user), when (timestamp), what (which record, old and new value) — specifically for the operations where it matters. The log is viewable and searchable, instead of disappearing into unreadable server logs.
Part of your data sovereignty
Because the app runs on your infrastructure, this log too stays with you — auditable and under your control, not in a foreign cloud you can't reach when in doubt.