Your business already collects customer data, but you may not be making the most of it. Every order, every visit to a kiosk, and every sign-up for your loyalty program generates valuable information. Yet many restaurant owners are still hesitant to fully utilize it.
The reason? The GDPR.
Good news: it doesn’t stop you from using your data. It just requires you to do so properly. And if you’re asking yourself, “Do I have the right to do this?” you’ve come to the right place.
Before using your data, make sure you know exactly what you’re allowed to do.
Personal data can be usedto identify a customer: an email address, a phone number, or an order history linked to a profile. Anonymized data, on the other hand, cannot be traced back to an individual.
In practical terms, you are free to analyze your overall sales. However, as soon as you want to reach out to a customer—that is, contact them directly (via email, text message, or notification) to encourage a return visit— consent becomes essential.
Not all data is equally valuable. Some data is particularly useful for effectively managing your business:
Where should you start? First, focus on visit frequency and average order value.
Let’s be practical: you can certainly collect data to fulfill a service (an order, a reservation). But to send marketing offers, you must obtain explicit consent. Some see this as an obstacle, others as an opportunity.
A customer who agrees to receive your communications isn’t “just a contact”—they’re already an engaged customer.
To make this consent worthwhile, give your customers a real reason to say yes: a reward, a loyalty perk, or a smoother experience.
The CNIL (Commission Nationale de l’Informatique et des Libertés), the French authority responsible for ensuring the protection of personal data, is clear: data must not be retained indefinitely.
In the context of sales prospecting, the generally accepted rule is as follows: data may be retained for up to three years after the customer’s last contact or interaction.
In practical terms, this means that if a customer:
And this has been going on for three years, so his data should no longer be used for marketing purposes.
Beyond this regulatory requirement, there is also a very practical issue for your restaurant: the quality of your database. Over time, this information becomes less relevant and can even hurt your performance.
Best practices to follow:
👉 Learn more: 5 reasons why restaurants should use customer data in 2026
Collecting data should never detract from the customer experience. It should be seamlessly integrated into the customer journey.
In your restaurant, certain times are particularly busy:
Be careful not to make too many requests. A single clear, well-timed request works much better.
Opt-in means that the customer must give explicit consent to receive communications (email, text messages, notifications). In contrast,opt-out means that the customer is automatically subscribed, with the option to unsubscribe later.
In the restaurant industry and under GDPR regulations, the opt-in approach is generally the norm: customers do not share their data by default. They do so only if they see an immediate benefit.
Simply mentioning a "newsletter" rarely makes a strong impression. On the other hand, offering a tangible benefit makes all the difference. For example: a discount on the next order, a birthday perk, or a loyalty program.
Always ask yourself: “What does my customer get in return?”
Today, transparency is a key factor in building trust—and therefore customer loyalty.
Your customers are willing to share their data if they understand why and how it is used.
A simple, honest message is often all it takes to overcome resistance.
Behind these requirements lies a simple principle: maintaining control over your data.
You must be able to explain:
In most cases, these features are already built into your digital tools, provided you choose compliant solutions.
👉 Learn more: What if the data from your kiosks were your best tool for boosting sales?
This is where the data really gets interesting.
Not all of your customers have the same impact on your revenue. Segmenting your customer base allows you to tailor your approach. A loyal customer shouldn’t receive the same message as an inactive customer.
👉 A simple segmentation is all you need to get started:
This is often more than enough to improve your performance.
You already have a wealth of data on your customers: ordering habits, favorite products, visit frequency, and even when they make purchases. The real challenge isn’t collecting this data, but using it at the right time.
This allows you to personalize the customer experience. A customer who regularly orders a burger can be automatically offered a complete meal deal that includes a drink and dessert. Conversely, a customer who usually orders a certain type of dish can be recommended a new item that matches their preferences.
This is whereupselling comes naturally: it’s not about pushing additional sales, but about offering logical and relevant add-ons. The average cart value increases without compromising the customer experience.
The same logic applies to targeted promotions: rather than sending a generic offer to your entire customer base, you can send more relevant messages, such as a reminder about a favorite product or an incentive to return after a period of inactivity.
Ultimately, the customer feels understood, not just targeted. And that is precisely what makes personalization so effective in the restaurant industry.
Automation allows you to nurture your customer relationships continuously, without the need for daily effort.
There’s no need to run multiple campaigns; a few well-targeted campaigns are enough to generate tangible results:
It is often the simplest mechanics that are the most effective.
Data isn't just for marketing. It can also help youoptimize your operations.
By analyzing your historical data, you can anticipate peaks in activity, adjust your inventory levels, and better organize your teams. This is what enables you to shift from reactive management to proactive management.
You’ll reduce stockouts during peak hours and minimize waste on less popular items, all while enhancing the customer experience both in-store and for takeout orders.
In many restaurants, data is scattered across multiple tools. As a result, it is rarely utilized.
Centralizing this information in a CRM system allows you to:
This is a key step in developing your data strategy.
👉 Learn more: How can you centralize your restaurant’s data to make better decisions?
Customer data has a direct impact on your profitability.
In a restaurant, a regular customer can account for a significant portion of annual revenue—far more than a one-time new customer. Focusing on encouraging repeat visits is therefore often more profitable than investing solely in customer acquisition.
This is precisely where customer data becomes essential for driving your customer loyalty initiatives.
Targeted recommendations and tailored offers naturally increase order values without any sales pressure.
By analyzing customer habits, you can offer relevant add-ons at the right time, such as a beverage, a dessert, or an upgrade to a higher-priced menu item.
Data helpsidentify customers who are falling behind and take action before it's too late.
A decline in visit frequency or a long period of inactivity are often subtle signs that are easy to detect with the right tools.
By implementing targeted reactivation efforts, you can prevent losing these customers permanently and reignite their engagement.
To manage effectively, focus on a few key metrics:
Your challenge isn't collecting data, but rather being able to use it effectively on a daily basis, without technical complexity or GDPR risks.
With Innovorder, all data from your various touchpoints (checkout, ordering kiosks, Click&Collect, and loyalty program) is automatically consolidated into a single platform.
In practical terms, this allows you, for example, to identify your most loyal customers, systematically reach out to those who haven’t returned in a while, or tailor your offers based on products they’ve already purchased. You gain a clear understanding of your customers and their purchasing habits, all while complying with GDPR regulations.
👉 Learn more: How does data help restaurants increase average check size?
It’s no longer a matter of viewing customer data as a regulatory burden to be endured or a topic reserved for large retailers. It’s a resource you already have at your disposal, one that can directly improve your decision-making and profitability.
The GDPR sets the framework, but it is your ability to turn that data into meaningful actions—greater customer loyalty, greater personalization, and improved performance—that directly impacts your day-to-day operations.
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Are you looking to leverage your customer data in a simple and compliant way? Innovorder’s experts will help you organize and utilize your data using our tools (point-of-sale, kiosk, Click & Collect, loyalty program), turning it into a real driver of performance.
