Skip to main content
Guhan supports four calendar providers. Which one you pick depends on how you currently manage your calendar.

Google Calendar

Native OAuth. Best experience — Guhan reads live availability and writes events directly to your calendar.

Outlook Calendar

Native OAuth via Microsoft 365. Same feature set as Google.

Cal.com

Bring your existing Cal.com booking URL. Guhan wraps it with a tracking parameter so bookings are linked back to prospects.

Calendly

Same as Cal.com — bring your booking URL and Guhan handles the tracking layer.

​
Google Calendar

1

Go to Settings → Calendars

Sidebar → Settings → Calendars.
2

Click + Connect → Google Calendar

Provider grid.
3

Sign in with Google

Google’s OAuth screen. Approve the requested scopes:
  • Read your calendar events — for availability checks
  • Write calendar events — for booking new meetings
  • Read basic profile — for the calendar owner’s name
4

Back in Guhan

Sender row shows an Active dot. Your Google Calendar is now the source of truth for available slots on your Guhan booking page.
Works with: personal Gmail, Google Workspace (any domain). Availability logic: Guhan reads busy/free info from your primary calendar. Events on secondary calendars (family calendar, shared team calendars) block slots too if they show as “busy.”

​
Outlook Calendar

1

Settings → Calendars → + Connect → Outlook Calendar

Same start as Google.
2

Sign in with Microsoft

Microsoft OAuth flow. Approve scopes for calendar read + write + basic profile.
3

Back in Guhan

Active dot. Outlook is now your booking source.
Works with: personal Outlook / Hotmail, Microsoft 365 (any tenant). Common gotcha: some Microsoft 365 tenants restrict third-party OAuth. Your admin may need to approve Guhan (Unipile is the underlying OAuth partner) once for the tenant. After that, any user can connect.

​
Cal.com

If you already use Cal.com for scheduling, keep using it. Guhan just needs your booking URL.
1

Copy your Cal.com booking URL

From Cal.com — the URL a prospect would visit to book time with you (e.g., https://cal.com/yourname/intro-call).
2

Guhan Settings → Calendars → + Connect → Cal.com

Paste the URL.
3

Save

Guhan now uses this URL as the scheduling link when a prospect asks for a call.
Tracking: Guhan appends a metadata parameter to the URL (something like ?metadata[guhanToken]=abc123) so when a prospect books, Cal.com’s webhook can tell Guhan which prospect it was. This means bookings show up on your Meetings page in Guhan linked to the right prospect + conversation. What Guhan controls: the booking link goes into replies + is tracked. What Cal.com controls: available slots, meeting duration, routing forms, custom questions, video-conferencing link generation, calendar writes.

​
Calendly

Same shape as Cal.com — bring your booking URL.
1

Copy your Calendly link

E.g., https://calendly.com/yourname/30min.
2

Guhan Settings → Calendars → + Connect → Calendly

Paste the URL.
3

Save

Ready.
Tracking: Guhan uses utm_content on the URL to identify which prospect booked. For this to work, Calendly needs a webhook back to Guhan — Guhan sets this up automatically the first time a booking comes through.

​
Which one should you use?

Use Google Calendar (or Outlook) — native integration is smoother. Guhan hosts the booking page for you at guhan.ai/book/<token>.
Stick with what you have. Guhan wraps your existing URL — you keep every advanced feature (routing, custom questions, video-link generation, etc.).
Use whichever calendar each rep already has. Each rep connects their own calendar in Guhan; bookings flow to the calendar of whichever rep’s sender sent the last message in the thread.

​
Reauth

Native calendars (Google, Outlook) use OAuth tokens that can expire (typically ~1 year for Google, ~90 days for Microsoft depending on tenant policy).
  • Banner at the top of the app: “Your Google/Outlook calendar needs reconnecting”
  • Settings → Calendars → [account] → Reauth → one-click through OAuth
Cal.com and Calendly URLs don’t expire — nothing to reauth.

​
Disconnecting

Settings → Calendars → [calendar] → Disconnect.
  • Immediately stops booking new meetings through this calendar
  • Previously booked meetings stay on the calendar (Guhan doesn’t delete them)
  • If this was your only calendar, your booking-link CTAs stop working — reconnect or add another calendar to resume

Meetings concept

The full flow — from prospect reply to booked meeting.

Schedule meetings

Sending scheduling links from Guhan.