9.2: How to Build a Customer Email List Without Annoying Anyone

Asking for an email without annoying anyone comes down to three things: ask when the customer is happy, say what they get, and let them choose. A list of 200 properly collected emails is worth more than 5,000 bought ones, because only people who agreed will open your messages.

Many owners hesitate to ask because they don't want to bother customers. In truth customers only mind when you ask at the wrong moment or without a reason. Ask well and most people are glad to share.

Here are seven places in your shop to collect emails, with sample lines in Vietnamese and English you can teach your staff.

Rule one: ask, don't take

In Canada, the anti-spam law CASL requires consent before you send promotional email.

There are two kinds of consent:

• •Express consent: the customer ticks a box or says yes. This is the best kind and doesn't expire.
• •Implied consent: the customer has bought from you. The law allows email for a period after that purchase (two years under CASL), but it runs out.

My advice: always get express consent. It's lawful, it's certain, and it's polite. And never pre-tick the consent box for someone.

If you need certainty about your shop's specific situation, ask someone with legal expertise.

Why you shouldn't buy an email list

• •It breaks the law. Those people never agreed to hear from you.
• •Nobody opens it. They don't know who you are.
• •You get reported as spam. Once enough people report you, your later emails land in junk folders, including the ones to real customers.

It's like pushing flyers through someone's door at midnight. Nobody warms to that.

7 touchpoints for collecting emails in your shop

1. Online booking

Add an email field to the booking form with a checkbox: "I'd like to receive offers and news from this shop." It's the easiest spot because customers are already filling things in.

2. Check-in at the front desk

An iPad on the counter where customers type their own details. They make fewer typos than staff typing what they hear.

3. At the till

The customer has just finished and is pleased. This is when "yes" comes most easily.

4. A QR code on the table or counter

A small sign: "Scan for a birthday offer." Customers scan while they wait, and nobody has to ask.

5. Shop Wi-Fi

Customers enter an email to use the Wi-Fi, with a consent checkbox. Good for restaurants, cafes and shops with a waiting area.

6. A loyalty program

"Join to collect points." Customers have a clear reason to share an email and a reason to come back.

7. Email receipts

"Would you like your receipt by email?" Then ask separately about offers. The two are distinct: agreeing to a receipt isn't agreeing to promotions.

Sample lines for staff

Staff don't need a script. One sentence is enough.

Vietnamese:

• •"Chị cho em xin email để tiệm gửi ưu đãi sinh nhật cho chị nha? Một tháng tiệm gửi một hai lần thôi ạ."
• •"Tiệm có gửi mẹo chăm móng và ưu đãi riêng cho khách quen qua email. Chị muốn nhận không ạ?"

English:

• •"Would you like to get our birthday offer by email? We only send one or two emails a month."
• •"We send nail care tips and regulars-only offers by email. Would you like to join?"

Each line should include three things:

1. •What they get (a birthday offer, useful tips).
2. •How often (once or twice a month).
3. •The right to say no (ask "would you like to", not "write your email here").

If the customer says no, staff smile and say "no problem at all". Never push.

Keeping the list clean

Once you have emails, keep them tidy:

• •One place only. Not three notebooks and two phones.
• •Record when and how each person agreed. For example: "March 15, ticked the box on the booking form". If you ever need proof, you have it.
• •Check the spelling. "gmial.com" is a very common mistake.
• •Stop immediately when someone asks. The law requires it within 10 business days, but right away is best.
• •Simple groups: regulars, new customers, people who haven't been back. Later you can send the right message to the right group.

Checklist: how many touchpoints do you have?

• •☐ Booking form has an email field and a consent box
• •☐ There's a check-in device at the counter
• •☐ Staff ask for email at the till
• •☐ There's a sign-up QR code on tables or the counter
• •☐ Wi-Fi has an email step
• •☐ There's a membership or points program
• •☐ Receipts can be emailed

You don't need all seven. Start with the two easiest for your shop, keep them up for a month, then add more.

Quick recap

• •Ask when customers are happy, say what they get, and let them choose.
• •Always get express consent. No bought lists, no pre-ticked boxes.
• •There are seven touchpoints in a shop. Start with the two easiest.
• •Keep the list in one place, record how each person agreed, and stop the moment anyone asks.

Next up (9.3): what to offer so customers gladly leave their email.

If you'd like your booking form, check-in and customer list connected automatically, that's what Wizy CRM and Go Check-In do. Questions? Book a free 15-minute consultation.

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✍️ About the author: Do Ngoc Hoan Founder of Wizy.ca, a marketing agency for Vietnamese businesses in Ontario. I write to make marketing simple for busy shop owners — no confusing jargon. More at dongochoan.com.