Overview
Cal.com offers self-hosted and open scheduling. Webhook payloads resemble Calendly; treat booking metadata as first-class CRM fields for attribution reporting.
What data is involved
- Booking payload JSON mapped to lead and activity objects.
Step-by-step setup
Sign in or sign up at HelloGrowthCRM. Open the login page, enter your credentials (or use Google), or choose Sign up if you need a new account. You must be signed in before you can open Settings and connect this integration.

Open login page(opens in a new tab)app.hellogrowthcrm.com/login
Open Settings. In the left sidebar, under Admin, click Settings (you will land on the Settings area; the URL is app.hellogrowthcrm.com/settings).

Open Settings(opens in a new tab)app.hellogrowthcrm.com/settings
Go to Integrations. On the Settings screen, use the middle settings menu. Under COMMUNICATION, click Integrations (star icon). Then find and configure this connector—the connector-specific steps below pick up from here.

Open Settings (Integrations)(opens in a new tab)app.hellogrowthcrm.com/settings
- Configure webhook in Cal.com toward your CRM ingestion endpoint.
Best practices
- Version your webhook endpoint when Cal.com updates schemas.
Best for & common use cases
Open-source friendly scheduling with CRM sync.
- Teams preferring Cal.com over Calendly for cost or hosting.
FAQ
Governance
Treat API keys and webhooks as production secrets. Align field mapping with your privacy policy and regional regulations (GDPR, marketing consent, telemarketing rules). Your admin controls which roles can install or edit integrations.