How to get customers' phone numbers without annoying them

Why the number matters

Without a number, a regular is a face your best waiter remembers. With one, you can see how often they come, what they order, and send them a message when they have not been in for a while. The number is what turns a crowd of guests into a list of people.

Ways that work

Each of these gives the guest a reason to share the number that is about them, not about you.

• The bill on WhatsApp instead of paper, for guests who want a copy
• A message when a pickup order is ready, so nobody waits at the counter
• A table booking, where the confirmation needs somewhere to go
• Ordering from the table by QR, where the number comes with the order
• A paper stamp card at the counter, which many cafés already use: the guest writes a number on it to get their free tenth chai

What backfires

Forcing it. A number demanded before food is served, or as a condition of the bill, gets you 9876543210 and a guest who feels processed. Buying lists or copying numbers from aggregator orders is worse: those guests never agreed to hear from you.

Consent basics under the DPDP Act

India's Digital Personal Data Protection Act, 2023 asks, in plain words, for three things when you use a guest's number. Tell them what it is for. Use it only for that, and ask separately before using it for something else, like offers. Make it as easy to withdraw consent as it was to give it.

This is a plain-language summary, not legal advice. Read the Act or ask a lawyer for anything specific to your restaurant.

How Thaalo handles it

In Thaalo, the name and number come with the order or booking the guest was already making. The box for WhatsApp messages is a separate tick that starts unticked, and it says how to stop: reply STOP. Guests who do not tick it get no offers. Thaalo does not issue stamp cards; the paper card above is a practice some cafés use on their own.