Send an email in SendGrid when someone cancels a meeting in Calendly

What each client fills in

SendGrid: From address

For example hello@northside.example

The accounts it needs

Each is the client’s own, stored encrypted and never copied between clients. Until one is added the client’s checklist shows it, and nothing runs.

• Calendly

  In the client’s Calendly: Integrations & apps → API and webhooks → Personal access tokens → Generate new token, with the scopes scheduling_links:write (booking links) and, for the triggers, users:read, webhooks:read and webhooks:write. A token made before Calendly introduced scopes keeps full access.

• 

  SendGrid → Settings → API Keys → Create API Key with Mail Send access; for the triggers, also the Event Webhook settings permission (user.webhooks.event.settings.read and user.webhooks.event.settings.update), or Full Access. The From address must be a verified sender.

After you install it

It lands switched off. The client’s checklist holds exactly this:

1. Connect the client’s Calendly, for “Someone cancels a meeting”
2. Connect the client’s SendGrid, for “Send an email”
3. Fill in SendGrid: From address (For example hello@northside.example)
4. Confirm with the client: The client’s Calendly is on a paid plan (Standard, Teams or Enterprise): Calendly sends webhook events only on those.