Chrome:

Cards for scheduled meetings will show up immediately.
If you have scheduled a meeting for a future date and your GREEN meeting card or PURPLE call card has not yet shown up:

Simply refresh the page & voilà  - your card will appear on your Dashboard.

App:

Cards are created instantly and will appear as soon as you schedule a meeting.
If you have a card that has yet to appear, simply pull the screen down as you would to refresh any other app.

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