Import only what should affect scheduling
You do not need every calendar in Awase. Import the ones whose events should block bookings and sharing. Leave irrelevant calendars out entirely.
Calendars shared to you from another Google account must already be shared into the account you connect — Awase cannot see calendars you cannot see in Google.
Sync window: default six months each direction
Awase syncs a bounded window — by default six months into the past and six months into the future (configurable to 3 or 12). Events outside the window may not appear until the window extends.
That is why setup stays fast: you are not waiting for a decade of history before sending a link.
Tags and share links
Assign tags when organizing calendars. When creating a share link, filter by Included tags so a sales link ignores internal-only calendars even if they block time in the dashboard.