Booking appointments: letting the client book on their own
The hidden cost of email back-and-forth
"When are you free?" — "Tuesday or Thursday?" — "Mornings are better" — "Does 10 work?" — "Actually, no…" Every appointment set by hand costs several emails, missed slots, double bookings and prospects who cool off during the exchange. For a coach, a consultant, a therapist, a service provider, it's a leak of time and sales: a hot prospect who has to wait for your reply is a prospect who can change their mind.
The solution is a booking tool: you publish your real availability via a link, the client picks a slot, the event is automatically added to both calendars, and each person gets a confirmation and reminders. Zero emails, zero double booking.
The reference tools
- Cal.com: the open-source alternative, very complete, with a solid free plan for individual use and advanced features (pay-at-booking, multiple appointment types, team) from ~€12/month. An excellent default for those who want to own their tool.
- Calendly: the market standard, ultra simple, free plan limited to one appointment type, paid ~€10–16/month for the rest. Perfect if you want "it just works right away."
- SimplyBook.me: built for shops and businesses with multiple services, resources and staff (salon, practice, workshop). Free plan, then ~€9/month and up.
- Microsoft Bookings / Google: if you're already in Workspace or 365, booking solutions are included — worth checking before paying for yet another tool.
Simple rule: individual and autonomous → Cal.com; the simplest possible → Calendly; multi-service shop → SimplyBook.me.
The settings that change everything
A poorly configured booking tool creates as many problems as it solves. Four settings not to miss:
- Buffer time. Add 10–15 minutes before/after each appointment so you don't stack them without breathing, and to absorb delays.
- Minimum booking notice. Prevent booking for "in 30 minutes": require, say, 12 or 24 hours' notice.
- Real availability windows. Only publish the slots where you genuinely want to work. Block your production mornings if they're sacred.
- Automatic reminders. Turn on an email reminder (and SMS if the tool allows) 24 hours then 1 hour before: it's the number one lever against no-shows.
Charging at booking
No-shows are expensive. The most effective countermeasure: charge, or take a deposit, at the moment of booking. Cal.com, Calendly and SimplyBook.me connect to Stripe to collect a deposit or the full price when the client picks a slot. A prepaid appointment is honored in almost every case. For paid consultations, it's also a cash flow win: you're paid before you work.
Video, location and automations
Connect your tool to Google Meet, Zoom or Microsoft Teams: the video link is then generated and inserted automatically into the invitation. For in-person appointments, include the address and a map in the confirmation. And think about what follows: most of these tools can trigger, via Zapier or Make, an action after booking — add the client to your email list, create a record in your CRM, send a preparation questionnaire. The appointment becomes the starting point of an automated journey.
Where to place the link
A booking link is only useful if people find it. Put it everywhere a prospect might decide to meet you: a clearly visible "Book an appointment" button on your site, in your email signature, in your Instagram/LinkedIn bio, and at the end of your discovery calls. The shorter the path from "I'm interested" to "it's booked," the more you convert.
Key takeaways
Replace the email back-and-forth with a booking link: Cal.com by default, Calendly for simplicity, SimplyBook.me for multi-service. Configure buffer, minimum notice, real availability and reminders, charge at booking to kill no-shows, and spread the link everywhere. You reclaim time and stop losing hot prospects in your inbox.