Data Snapshot in Zoho Analytics lets you capture and maintain a timeline of changes to a specific metric or set of metrics over time. It periodically records the data from a chosen report and stores it in a separate table, letting you build genuinely historical reports rather than only ever seeing a current-state snapshot.
If you have a report showing Leads by Source and Status, a Data Snapshot lets you track how that breakdown changes every hour, day, week, or month, rather than only ever seeing the current picture. This is genuinely useful for comparing performance improvements over time, something a live-refreshing report alone can't show you.
From Data Sources in the side panel, go to the Snapshots section, and use View Snapshot History on the relevant snapshot to see a calendar of every day a snapshot was taken. Clicking a specific date shows the exact time the data was fetched, along with how many rows and columns were imported at that point.
To adjust the name, retention period, or schedule interval of a snapshot you've already created, go to Data Sources, then Snapshots, hover over the relevant snapshot, and click the Info icon to open the Edit Snapshot screen.