ShowsUp for Google Calendar

Install

1. Open the ShowsUp listing on Google Workspace Marketplace and click Install. Grant the permissions Google requests — the add-on only needs to see the event you currently have open.
2. Workspace admins can install for an entire domain from the same listing using the Admin install option.
3. Open Google Calendar — the ShowsUp icon appears in the right-hand side panel.

Sign in

First time you open the side panel on a new Google account, you'll be asked to sign in with your ShowsUp email and password. After that one sign-in we save the link between your Google account and your ShowsUp account — you won't be asked again.

Don't have an ShowsUp account? Sign up free at app.showsup.ai/signup.

Attach a reminder sequence

1. Open any event in Google Calendar.
2. Click the ShowsUp icon in the right-hand side panel.
3. The side panel lists the event's attendees. Tick the ones who should receive reminders.
4. If ShowsUp doesn't have a phone number for an attendee, fill it in directly in the panel.
5. Pick a reminder sequence from the dropdown.
6. Click Attach sequence at the bottom.

Reminders send automatically across the channels you've configured in your sequence — email, SMS, and voice.

Permissions explained

When you install ShowsUp, Google asks you to grant four permissions:

See your primary Google Account email address

So ShowsUp can match the Google account in Calendar to your ShowsUp account without a password prompt.

See your personal info

Standard Google sign-in. Used only to confirm the verified email address above.

See the events you open in Google Calendar

So the side panel can show the attendee list and event time for the event you're currently looking at. ShowsUp never reads any other event in your calendar.

Edit the events you open in Google Calendar

So ShowsUp can save which reminder sequence you've attached as metadata on the current event. Used only for the event you're currently looking at — never any other event.

Troubleshooting

The side panel says "Sign in to ShowsUp" every time

Your Google account email doesn't match your ShowsUp account email. Sign in once with your ShowsUp credentials — the next time you open the panel it will recognise you silently.

The ShowsUp icon doesn't appear in Calendar

Refresh Google Calendar. If the icon still doesn't appear, uninstall and reinstall the add-on from the Marketplace listing.

"Could not verify your identity" error in the panel

Sign out of Google in the browser tab, sign back in, and reload Calendar. If the error persists email support and we'll investigate server-side.

I need a permission I unchecked at install

Google's panel doesn't support re-requesting individual permissions from inside the add-on. Uninstall and reinstall the add-on from the Marketplace listing, keeping all permission boxes checked this time.

Uninstall

From any Google product, click the ShowsUp icon → three-dot menu → Uninstall. Or remove it from your installed Workspace apps.

When you uninstall, ShowsUp automatically deletes the link between your Google account and your ShowsUp account, and stops any active calendar push subscriptions. Your ShowsUp account and reminder history are preserved — sign in at upshow.co.uk any time.

Support

General support: showsup.ai/support.

Direct contact: support@showsup.ai — we reply within one business day.