While many F&B brands still view Zalo OA as simply a messaging tool, leading businesses are already leveraging the platform as a comprehensive ecosystem to attract customers, increase revenue, and strengthen post-purchase customer engagement. In reality, most restaurant chains in Vietnam have yet to unlock the full potential that Zalo can offer.
Among the four Asian countries with major domestic messaging platforms - China (WeChat), Japan (LINE), South Korea (KakaoTalk), and Vietnam with Zalo. Zalo has become the primary communication channel between businesses and Vietnamese consumers. With more than 80 million users and over 400,000 active businesses, the platform continues to play an increasingly important role in business-customer interactions. This is also why more F&B chains are choosing to sell directly through Zalo without marketplace commission fees instead of relying entirely on third-party food delivery platforms. However, most F&B businesses today still use Zalo primarily as a one-way communication channel for publishing menus or announcing opening hours. While this approach helps maintain brand visibility, it does not fully capture the larger opportunity to build stronger customer relationships and drive sustainable revenue growth.
This is exactly why Zalo Engagement Solution (ZES) was developed, enabling businesses to move beyond simply delivering information and instead create meaningful interactions, personalize customer experiences, and improve business performance.
“Zalo OA helps brands establish their presence on Zalo. Zalo Engagement Solution (ZES) helps brands sell and retain customers on Zalo.”
Today, most F&B chains operate at a foundational level on Zalo, publishing promotional broadcasts, responding to customer chats, and updating store information. While these activities are an essential starting point, they are not enough to build long-term customer engagement or generate sustainable revenue growth.
ZES enables F&B businesses to move beyond basic operations and evolve into an integrated ecosystem. From customer acquisition and loyalty program activation to interactive campaigns and automated customer care, every activity is connected within one unified customer journey. To make this possible, ZES is built around five core pillars specifically designed for the F&B industry:
One of the biggest challenges for many Zalo OAs is the lack of followers, limiting the ability to reach the right audience with content. No matter how compelling the message is, its impact remains constrained if the follower base is too small. Zalo Engagement Solution (ZES) addresses this challenge by creating multiple customer touchpoints to continuously and sustainably grow followers.
For offline channels, customers can follow the Zalo OA by scanning QR codes placed on dining tables, menus, receipts, or cashier counters. To increase conversion rates, restaurants can introduce instant incentives such as vouchers or exclusive gifts for customers who follow the OA directly at the point of sale.
For online channels, Zalo OA can be integrated with SMS Marketing (SMS Brandname) campaigns and existing customer databases to expand follower acquisition. At the same time, businesses can leverage food delivery platforms as an additional touchpoint, gradually converting customers from third-party platforms into owned brand channels.
One of the biggest challenges of loyalty programs is low participation rates. The issue often does not lie in the rewards themselves, but in an overly complicated experience: customers are required to download an app, create an account, and remember login credentials before they can start earning points.
With a Restaurant Zalo Mini App, the entire process is simplified within Zalo, a platform customers already use every day. This significantly lowers participation barriers and creates a more seamless experience at the point of sale.
Loyalty Journey on the Zalo Mini App
Beyond purchase transactions, businesses can also design additional point-earning activities such as completing surveys, scanning QR codes on products, participating in mini games, or referring friends to follow the Zalo OA. These engagement mechanisms not only increase customer interaction but also encourage repeat visits and stronger long-term loyalty.
More importantly, all customer data is stored and managed directly by the business, creating a solid foundation for future customer engagement and personalized marketing initiatives.
Commission fees from food delivery platforms are significantly reducing profit margins for many F&B chains. At the same time, businesses have limited ownership of customer data when transactions take place entirely on third-party platforms. T
o address this challenge, Zalo Engagement Solution (ZES) enables businesses to build a commission-free sales model on Zalo through the Restaurant Zalo Mini App, allowing brands to establish a direct ordering channel and gain greater control over customer engagement.
Key Features:
Not every customer is willing to engage with a promotional message. But many are willing to spend a few minutes playing an entertaining game in exchange for rewards. That is why Mini Games are becoming one of the most effective tools for increasing engagement, growing followers, and encouraging customers to return. Based on VietGuys’ campaign implementation data, gamification campaigns on Zalo have delivered significantly higher engagement and conversion rates compared to traditional broadcast campaigns.
When integrated with Zalo OA and loyalty programs, Mini Games do more than create engagement, they also help businesses collect customer data, grow follower bases, and convert interactions into measurable business results.
One customer visited the restaurant a month ago but has not returned. Another customer has an upcoming birthday. Meanwhile, loyal customers continue placing orders every week. Most businesses already possess this data but not all know how to turn it into meaningful customer engagement. This is where automation creates real value.
Instead of sending the same message to every customer, Zalo Engagement Solution (ZES) automatically triggers personalized engagement programs based on individual customer behavior and interaction levels. As a result, every message reaches the right audience at the right moment with a higher likelihood of conversion.
The entire process operates through a closed-loop system: Data Collection → Customer Segmentation → Automated Journey Activation → Measurement & Optimization
Behind this ecosystem is a Customer Data Platform (CDP), where data from POS systems, Zalo OA, Mini Apps, and other customer touchpoints is synchronized to build a unified 360° customer profile (Source: VietGuys). This allows every communication to be driven by actual customer behavior rather than assumptions.
When follower acquisition, loyalty programs, e-Ordering, and Mini Games are connected within a single data ecosystem, Zalo becomes more than just a messaging channel. It becomes an always-on growth engine, helping F&B chains maintain customer engagement, increase repeat visits, and maximize revenue from their existing customer base, 24/7.
A strong example of how Mini Games can drive business results through Restaurant Zalo Mini App is the campaign implemented by VietGuys for Highlands Coffee. Over a period of 41 days, the brand set a target of attracting 120,000 program registrations through a simple engagement mechanism: customers scanned a QR code in-store, participated in a Mini Game, received vouchers, and saved those vouchers directly within the Mini App for future purchases.
Results After 41 Days:
What stands out is that the majority of the results were driven by engaging game mechanics and a seamless experience on the Zalo Mini App, rather than relying on increased advertising spend. Three key factors contributed to the campaign’s success: (1) clear offline touchpoints through QR codes across stores, (2) simple gamification mechanics that encouraged participation from the first interaction, and (3) vouchers stored directly within the Mini App, creating a strong incentive for customers to return and make another purchase. This model can also be flexibly adopted by small and medium-sized F&B chains based on their business scale and budget.
Looking to implement a similar model for your brand? Contact VietGuys for a free consultation.
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Zalo OA is the right place to start. However, in today’s increasingly competitive F&B landscape, where advertising costs continue to rise, commission fees from food delivery platforms keep reducing margins, and customer retention becomes more challenging, one-way broadcasting is no longer enough. Zalo Engagement Solution (ZES) is not simply a feature set; it is an integrated growth strategy where every customer interaction can be transformed into data and business opportunities.
Followers are acquired through both online and offline touchpoints. Revenue is accelerated through e-Ordering. Customers are retained through Loyalty programs and Mini Games, while Automation ensures continuous and efficient engagement across the customer journey. Throughout implementation, businesses can track measurable outcomes such as new OA followers, voucher redemption rates, and revenue generated from direct ordering channels.
More importantly, businesses gradually build assets that are even more valuable than short-term revenue: first-party customer data, the ability to sell directly on Zalo without marketplace commission fees, and stronger ownership of customer relationships without relying entirely on advertising or intermediary platforms.
VietGuys is currently supporting multiple F&B brands in implementing ZES and partnering with businesses to build growth roadmaps tailored to each business model.
Contact VietGuys here for a consultation on building an effective and scalable customer engagement strategy.