Why Birthday Campaigns Work
Birthday emails do well for three plain reasons.
Personalization. The email is about the guest, not about your venue. "Happy birthday, Sara" reads differently from "New menu this week", and it is about as personal as a one to many email gets.
Timing. People already plan something around a birthday: a meal, drinks, a day out. You are not inventing an occasion. You are turning up when one already exists.
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Other people come too. A birthday is rarely celebrated alone. The guest might redeem a free dessert or drink while the rest of the table orders normally. That is why a small gift can be worth giving, and also why you should check your own numbers rather than assume it pays.
Collecting Birthday Data Without Killing Opt-In Rate
A birthday field is one more thing to fill in, so make it optional and keep it small.
Ask for month and day, not year. You do not need the year to send a birthday email. Data protection law expects you to collect only what you need: under the GDPR, personal data should be "adequate, relevant and limited to what is necessary" for the purpose (GDPR, EUR-Lex). Mailchimp's Birthday field itself only stores month and day (Mailchimp: signup form fields). This is general information, not legal advice.
Method 1: an optional portal field. In VoqadoWiFi you can turn on an optional birthday field in the portal builder. Leave it optional and clearly label why you ask: "Add your birthday for a treat (optional)."
Method 2: ask later, by email. After the guest has had a welcome email or two, add a line: "Tell us your birthday and we'll send something on the day." Link it to a preference form in your email tool that updates the birthday field.
Method 3: birth month only. Less precise, feels less personal to give. You then send one birthday month email to everyone whose month matches.
If you collect birthdays in VoqadoWiFi and send from Mailchimp, note that the Mailchimp sync carries name, phone and tags, not birthdays. Either import the birthday column from your VoqadoWiFi CSV export into a Mailchimp birthday field, or collect the date in Mailchimp directly.
What to Offer: Free Item Wins
A specific free item ("a birthday cocktail on us", "free dessert for the birthday guest") is easier to picture than "20% off your bill". A percentage asks the guest to do sums; a named item feels like a gift.
That is a reason to start with a free item, not proof it will win at your venue. If you have enough birthdays a month, alternate the two and compare redemptions.
Keep the cost under control: one item, for the birthday guest, with a date window.
When to Send
- About a week before: gives the guest time to plan a table. Check your tool can send ahead of the date before you build around this.
- On the day: the most natural moment, but little time to plan a visit.
- Both: a heads up a week ahead and a short reminder on the day.
In Mailchimp, the Birthday trigger adds contacts to a flow from the birthday field and repeats every year (Mailchimp: flow triggers).
In VoqadoWiFi, the birthday message is off by default. When switched on it sends on the birthday at 09:00 venue time, only to guests who gave a birthday and have marketing consent on record (use separate, unticked marketing consent; VoqadoWiFi's explicit consent mode does this), and only from the venue they visited most recently. It counts toward the cap of one message per guest per venue every 7 days, and when it collides with a campaign or a "we miss you" message, the birthday wins. Post visit emails are switching on venue by venue as email goes live.
Subject line (a week before): "Your birthday gift is waiting, [Name]. Valid all birthday week." Subject line (on the day): "Happy birthday, [Name]. Your gift is ready."
Illustration: A 500 Subscriber List
Illustration, not a benchmark. Every figure here is an assumption; put in your own.
A restaurant has 500 email subscribers, and 180 of them have shared a birthday.
- Birthdays per month: 180 divided by 12 = 15
- Suppose a third of them come in for it: 5 birthday tables
- Suppose each table has 3 people spending €30 each: €90 per table
- Birthday tables in a month: 5 x €90 = €450 in sales, before the cost of the free items
Over a year that is about €5,400 in sales from birthday tables. The useful question is how many of those tables would have come anyway. To get a rough answer, compare birthday guests who got the email with those who did not get one (for example, the months before you switched it on).
Next step: turn on the optional birthday field, ask for month and day only, and decide the one item you will give.
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