Revocation works from either side, instantly, with no support ticket. In flo.space: settings → Connections → disconnect the tool. From the provider: remove flo.space from Google's security page, Intuit's connected apps, Shopify's apps list, or Stripe's authorized applications; the connection dies just as dead.
What happens on disconnect: reading stops immediately, pending actions that depended on the tool are cancelled (never silently executed), and working context from that tool is deleted per the privacy policy. The audit trail keeps its historical record of executed actions, because an audit trail that forgets is not one.
Good hygiene: scope reviews beat dramatic exits. Each provider's security page shows exactly which scopes flo.space holds; checking that quarterly (alongside every other connected app you run) is the habit that matters. And when a teammate leaves, deactivate their seat in team settings; their access ends even though the workspace's tool connections continue.