What does “Coverage” mean, and how do I fill a gap?

Before you start

• Your history synced at least once: How do I run my first full sync?
• The extension installed and connected: How do I install the extension and connect it?
• Steam access granted to the extension: What permissions does the extension ask for, and why?

Step by step

1. Find “Coverage” in the Readiness list on the Sync page. It shows your stored date range and how many events are stored.
2. Read the line under it. “No gaps detected.” means a finished sync has checked the whole range.
3. If the line is amber, part of the range is unchecked: “2 gaps detected.” or “Coverage has not been verified yet.”
4. Click “Fill first gap”, or “Verify this range” when the line says it has not been verified.
5. Wait for the run to end. Coverage updates by itself and reads “No gaps detected.” when the stretch is checked.

Good to know

• The four states read: “No events stored yet.”, “N events stored. No gaps detected.”, “N events stored. Coverage has not been verified yet.” with the link “Verify this range”, and “N events stored. K gaps detected.” with the link “Fill first gap”.
• A stretch counts as checked when a Full sync, Catch-up or Custom range read it. A stopped or failed run counts for the part it saved, and Quick sync never counts.
• Typical causes of a gap are a first sync ended with “Stop & save”, a failed sync, or events that arrived only through Quick sync, including events read on the Steam page.
• “Fill first gap” works on the oldest gap only. Run it again for the next gap. When the beginning of your history has not been read, the gap is named “everything before” a date.
• “Verify this range” is the same action, run over the whole stored range.
• The run is a Custom range, so it appears under “Recent syncs” as “Custom range”.
• The link is hidden with an older extension, and it is disabled while a sync runs or until Steam access is granted.