In markets where Viber is widely used, such as Eastern Europe (Ukraine, Belarus), the Middle East, and the Philippines, Viber is no longer just a tool for sending messages and making calls. Instead, it has become an important carrier that not only meets local people’s daily chatting and notification needs but also helps cross-border merchants connect with customers. Local users not only use Viber to communicate with relatives and friends and receive life reminders but also are accustomed to consulting cross-border merchants about products, confirming repurchases, and even completing small-sum transactions through Viber.

For us doing cross-border business, Viber’s role is no longer just to find customers and send messages. More importantly, it is to do a good job in refined operations and retain old customers. However, many merchants get stuck here: they want to do refined operations but have no data support; they want to send messages compliantly but are afraid of stepping on the platform’s pitfalls.

Unlike other social platforms, operating in these core Viber markets hinges on two key points: compliance and accuracy. Local users attach great importance to personal privacy and the compliance of information outreach. If you send messages non-compliant, you will not only be blocked by users but also may be restricted by the platform, or even punished by local data supervision. In addition, without data support, refined operations are empty talk. Blind follow-up and lack of customer segmentation will ultimately lead to the loss of old customers and failure to convert new ones.

The NumVerix Viber Verification Tool, relying on three core functions—registration status, user Member ID, and account last online time—prioritizes compliance, then achieves good segmented operations, breaks away from the limitation of "only deleting invalid numbers", and truly realizes long-term and stable growth.

I. What Are the Core Pain Points of Localized Viber Operations?

Many cross-border merchants have a misunderstanding when deploying in the Viber market: they think that as long as they have customer numbers, they can send messages and achieve conversions. But they ignore the particularity of core Viber markets—users in Eastern Europe and the Middle East value personal privacy and information compliance more than those in other regions. Moreover, the Viber platform itself has very strict regulations on the messaging behavior of cross-border merchants. Coupled with the lack of basis for segmented operations, merchants will only get more tired, with input and output disproportionate. This is also the key reason why many merchants are outperformed by their peers.

• First, wanting to send messages compliantly but having no basis makes it easy to step on the platform’s risk control red lines. Viber clearly stipulates that mass marketing messages cannot be sent to unregistered users or long-term inactive users. Especially in some countries in the EU and the Middle East, combined with local privacy laws, non-compliant messaging may even result in fines. But we merchants have no way to judge which numbers are registered on Viber and which are long-unused dead numbers. Blind messaging will either lead to user complaints and blocks, platform restrictions, or even damage the brand’s local reputation, making it difficult to operate in the future.
• Second, without a basis for segmentation, operations rely entirely on intuition, resulting in extremely low efficiency. The Viber customer numbers we have are disorganized. We cannot distinguish between new customers, old customers, and long-term inactive customers, nor can we tell which customers have high intent and which are just randomly left numbers. We can only send messages in a one-size-fits-all manner—sending old customer-exclusive benefits to new customers and instant promotions to inactive customers. This not only fails to impress users but also wastes time and energy, ultimately leading to the loss of old customers and failure to convert new ones.
• Third, there is no standard for customer filing, so the hard-earned customer assets can be lost at any time. Viber identifies accounts by mobile phone numbers, but in these core markets, users change mobile phone numbers very frequently. We have no unique and stable identifier to record customers. Once a user changes their number, all previous customer information is lost, making it impossible to continue following up. The hard-accumulated customer assets are wasted, and we can only repeatedly spend money and energy developing new customers, falling into a vicious circle.
• In fact, the root cause of these three pain points is the same: lack of accurate account verification data support. Without a verification tool, compliant messaging is empty talk, segmented operations are just a slogan, and customer assets cannot be accumulated. The NumVerix Viber Verification Tool solves these problems through its three core detection functions, providing solid data support for compliant and segmented operations, transforming our Viber operations from "blind busyness" to "targeted efforts".

II. Core Detection Functions of the Viber Verification Tool

The core of the NumVerix Viber Verification Tool is not to "delete useless numbers", but to help us do a good job in localized Viber operations—both compliant and refined. All of this relies on accurate detection data support. Each of its core functions is tailored to the actual needs of cross-border merchants.

1. Registration Status Detection

Registration status detection is the most basic and critical step in compliant Viber operations, which is completely different from simply "deleting invalid numbers". NumVerix can accurately check whether a number is registered on Viber, and quickly delete unregistered empty numbers and invalid numbers that have been banned or canceled. This fundamentally avoids the compliance risk of "sending messages to unregistered users" and prevents being judged as spam by the platform due to frequent messaging to invalid numbers, thus triggering risk control.

For cross-border merchants, this not only saves time and energy but also ensures the compliance of their local operations. Especially in markets with strict compliance requirements such as Eastern Europe and the Middle East, deleting unregistered numbers in advance can not only avoid violating local privacy laws and being fined but also reduce user complaints and maintain the brand’s good local image, laying a solid foundation for long-term operations.

2. User Member ID Extraction

The user Member ID is the "permanent ID" of a Viber account. No matter how many times a user changes their mobile phone number, this ID remains unchanged. The core purpose of this function is to help merchants solve the problem of customer filing and retain customer assets, rather than simply preventing customer loss. By extracting the user Member ID, a set of standardized customer files can be established, linking the Member ID with the customer’s purchase records and consultation records, making it easy to conduct customer segmentation and filing.

For example, through the Member ID, we can quickly distinguish between high-value old customers, interested new customers, and inactive customers. Even if a customer changes their mobile phone number in the future, we can quickly find the customer’s file through the Member ID and continue following up, eliminating the loss of customer information. The hard-earned customer assets can be accumulated continuously, and the cost of developing new customers can also be reduced.

3. Account Last Online Time Detection

Last online time detection is the key to refined segmented operations. Its core purpose is not to "seize the customer’s active time period", but to help merchants judge the customer’s activity level and formulate targeted operation strategies. Through this function, we can clearly know when each customer last logged into Viber, thereby distinguishing recently active customers, mid-term inactive customers, and long-term inactive customers, and no longer need to send messages blindly.

For example, for recently active customers, we can send new product information and repurchase benefits to improve the repurchase rate; for mid-term inactive customers, send exclusive benefits to guide them to become active again; for long-term inactive customers, temporarily send fewer messages to avoid causing resentment. This segmented operation method based on active time can not only improve operational efficiency but also accurately impress users, ensuring that every operational input yields returns.

III. NumVerix Viber Verification Helps Merchants Achieve Real User Growth

Relying on professional databases and Viber platform adaptation rules, the NumVerix Viber Verification Tool can complete batch and stable account detection without manual testing one by one, and without worrying about triggering risk control. The detection results can be directly used for customer segmentation, compliant messaging, and customer asset accumulation, enabling us to conduct Viber operations with data support and clear direction, no longer engaging in blind busyness.

Compared with manual operations, this tool not only improves operational efficiency but also helps merchants avoid compliance risks, retain customer assets, and improve operational accuracy. For cross-border merchants who have long been deeply engaged in core Viber markets, this is the core value of this tool—it does not solve the superficial "invalid number problem", but helps us achieve long-term and stable growth.

Conclusion

Doing cross-border business in core Viber markets such as Eastern Europe, the Middle East, and the Philippines no longer depends on "how many customer numbers you have", but on "how well you operate". Compliance is the premise, segmented operations are the key, and the ability to retain customer assets is the core competitiveness.

The NumVerix Viber Verification Tool breaks away from the limitation of traditional number-deleting tools. It safeguards compliance through registration status detection, accumulates customer assets through Member ID extraction, and achieves good segmented operations through last online time detection, providing cross-border merchants with a brand-new Viber operation solution.

Whether you are doing foreign trade and deeply cultivating Eastern European and Middle Eastern markets, or doing cross-border e-commerce and deploying in regions such as the Philippines, this tool can help you avoid compliance pitfalls and improve operational accuracy.

About NumVerix

NumVerix is a global number verification service provider, with its services covering over 200 countries. It specializes in offering one-stop real-time verification solutions for enterprises. Its core products fall into two key segments: Number Verification (including Basic, HLR, MNP, and FraudShield) and Social/App Platform Verification(covering more than 10 mainstream platforms such as Facebook, Zalo, email services, Binance, and KuCoin).

Through functions like invalid number detection, activation status detection, and activity detection, NumVerix helps enterprises accurately screen real users. Leveraging a massive global real-time database, it empowers enterprises to achieve the digital development of global precision marketing.

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