No-Show Restaurant Calculator: Cut No-Shows by 60%

Calculate what no-shows cost your restaurant each week, then activate the WhatsApp reminder sequence that cuts them by 60% in under 3 weeks.

Abstract illustration in the Heep palette: 17 seats taken and four left empty, above a fill gauge, on a cream background.

One in twelve people who book a table never turns up. Almost never out of malice: out of forgetfulness. The figure looks harmless until you convert it into money on a 150-cover service.

€35 That's the average loss per no-show. On a 150-cover service with an 8% no-show rate, you lose 12 tables a week, over €1,500 in unearned revenue, every week.

The calculation needs three numbers you already have: covers per service × no-show rate × average spend is the loss on one service. Multiply by the number of services in the week, then by 4.3 for the month.

  • A no-show rate often close to 10% in French restaurants, higher at weekends: record yours before you calculate
  • A no-show rate that drops sharply with a WhatsApp reminder sequence at D-7 / D-2 / D-0
  • <3 wks before you see the first measurable drop in no-show rate (First service with reminders active)

Before, with no automated reminders

  • Empty table on the day, no warning
  • No way to reseat another guest in time
  • Net loss: ~€35 per missing cover
  • No-show rate out of your control

After, with the Heep sequence D-7 / D-2 / D-0

  • Automatic confirmation at D-7 via WhatsApp
  • Reminder at D-2 with a simple cancellation link
  • Same-day message if no confirmation received
  • No-show rate halved in under 3 weeks

Case study: Noto Paris (Moma Group)

  • Before Heep: 8% no-show rate on a 150-cover service, 12 empty tables per week.
  • After deployment: rate dropped to 3% within 3 weeks. +€1,800 in monthly revenue recovered.
  • See also: the full Noto Paris case study and how to activate reminders with the Zenchef integration.

The number to pull this week isn't the rate your booking system displays: it's the gap between covers booked and covers served over four weeks. Above 5%, the reminder sequence pays for itself within the month.

See how many bookings you’re losing

Frequently asked questions

How much does a no-show cost a restaurant on average?

A no-show typically means around €35 in lost revenue per cover. For a 150-cover restaurant with an 8% no-show rate, that's roughly 12 empty tables per week — over €1,500 in unearned revenue each week.

How does Heep's no-show reminder sequence work?

Heep sends three automated messages: a confirmation request at D-7, a follow-up at D-2 with a simple cancellation link, and a final message on the day itself if no confirmation has been received. The sequence works across WhatsApp, SMS, and email.

How quickly do you see results?

Most restaurants see a measurable drop in their no-show rate from the very first service with reminders active. On average, the rate falls by 60% within three weeks.

Do reminders work with Zenchef, TheFork, and SevenRooms?

Yes. Heep integrates natively with Zenchef, TheFork Manager, and SevenRooms. Reminders are triggered automatically as soon as a reservation is created in your system.

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Try Heep on your own restaurant.

Heep writes to you on WhatsApp exactly as it would write to your guests, with your hours and your rules. You judge it on the evidence, then start whenever you are ready.