In Southeast Asian and East Asian markets such as Taiwan, Thailand, and Indonesia, LINE is the main battlefield with an ultra-high penetration rate—for example, it has exceeded 90% in Taiwan. Many enterprises rush into actions as soon as they start: collecting a bunch of mobile phone numbers, adding friends, building communities, and eager to send promotional messages. But what’s the result? Few of the 1,000 messages sent are opened, which is a complete waste of effort.

Many people think the problem lies in poor copywriting or lack of local operation experience, but they haven’t found the real reason at all—the users you send messages to may not have opened a LINE account at all, or they may be virtual numbers or recycled numbers, so the messages can’t even reach their mobile phones.

To be honest, when doing LINE private domain operations, it is more important than anything else to first screen out valid users who can communicate normally! It not only saves money but also avoids platform risks. With NumVerix’s LINE account activation status detection function, you can screen once before sending messages, directly eliminate useless leads, and avoid doing useless work.

Most enterprises attribute the problem to insufficient attractiveness of copywriting and lack of local operation experience, but they ignore the core premise—users you reach may not have really opened a LINE account, or even be virtual numbers or recycled numbers, which can’t receive any of your messages at all.

For cross-border enterprises laying out LINE private domains, screening out valid users who have really opened LINE and can communicate normally is far more important than polishing copywriting and increasing investment—it is not only the key to improving conversion rate but also the core of avoiding platform risks and ensuring stable operations. NumVerix’s LINE account activation status detection function is precisely designed to solve this pain point, allowing enterprises to complete effective lead screening before reaching users and bid farewell to ineffective internal consumption.

I.The Most Critical Thing for LINE Private Domain: Sending Messages to Valid Users

Friends who have been doing LINE private domain operations in Taiwan and Thailand for a long time must have stepped on these pits, but they haven’t realized that the problem lies in the validity of accounts:

• The mobile phone numbers you obtain from Shopee, Lazada orders, local advertisements, and TikTok lead generation may only be used by users for shopping, and they have not registered LINE at all (moreover, male users account for 83% of LINE, most of whom use it for cross-border communication, and some local people don’t like to use it either);
• You add friends in batches and send activities, and it shows "sent successfully", but in fact, the other party either hasn’t opened LINE, or has a virtual number or recycled number, which means you are communicating in vain;
• Customer service follows up but gets no response, and thinks local users are indifferent and not interested, so they send messages repeatedly. As a result, it triggers LINE’s risk control, and the enterprise account is restricted or its functions are blocked, which is not worth the loss;
• A lot of money is spent on local promotions and cooperation with influencers, hoping to reach customers through LINE, but the conversion rate is extremely low, and all the money is wasted on useless accounts.

To put it bluntly, it’s not that your operation is poor, nor that the local market is difficult to develop, but that you haven’t done "account validity detection"—you have been dealing with "non-existent users", so it’s no wonder there is no conversion.

II.NumVerix: One-Click LINE Account Detection to Screen Valid Users

NumVerix specializes in global cross-border social account verification and has specially developed an account activation detection function for LINE, which is particularly suitable for the needs of markets such as Taiwan and Thailand. There is no need to check one by one manually; it can quickly distinguish which accounts are useful and which are not, saving time and avoiding risks.

It has 4 core functions, all of which are just needed by us cross-border practitioners, 100 times more efficient than manual checking:

1. Batch Check Mobile Phone Numbers and One-Click Filter Invalid Accounts

You can import the collected mobile phone numbers into the NumVerix platform in batches. The system can quickly check whether these mobile phone numbers have registered LINE, automatically mark "registered" or "unregistered", and directly filter out useless leads, avoiding wasting effort.

2. Compatible with Multi-Channel Leads, No Extra Troubles

Whether your mobile phone numbers are from local advertisements, e-commerce orders, social lead generation, official website registration, or offline activities, they can be imported for detection as long as the format is correct. There is no need to adjust the format manually, saving a lot of trouble.

3. Capable of Checking Millions of Mobile Phone Numbers Without Delaying Work

It can process millions of mobile phone number detections every day. Whether you are a large cross-border e-commerce company or a local brand with hundreds of thousands or millions of leads in hand, it can be checked quickly without delaying your promotions and operations.

4. Check User ID & Account Link for Precise Targeting of Interested Users

It not only checks whether LINE is registered but also shows the user ID and account link, helping you accurately reach users. Subsequently, sending targeted messages and conducting layered operations can double the conversion rate.

III.Which Scenarios Must First Conduct LINE Account Detection?

According to the practical experience of our cross-border teams, in these scenarios, conducting detection before operation can save a lot of money and avoid many pits. The earlier you do it, the more cost-effective it is:

• When doing LINE private domain operations in Taiwan or Thailand for the first time, after collecting mobile phone numbers and before sending the first message;
• Before importing multi-channel mobile phone numbers into the CRM system, wash them first to avoid invalid data;
• Before sending promotions during major local festivals such as Taiwan Mid-Autumn Festival and Thailand Songkran Festival, filter out invalid accounts to avoid risk control;
• When the LINE community has 1,000 members, before starting layered operations and sending targeted messages;
• Before launching the local automatic customer service, first check whether the target users can receive messages to avoid useless work.

Conclusion

In markets such as Taiwan and Thailand, LINE is a golden channel for cross-border private domains, which can help you connect with local users and make money in the long run. Doing marketing is not about sending more messages, but about sending them to users with valid accounts. NumVerix’s LINE account detection helps you delete useless leads, focus on real potential customers, save costs, improve conversion rates, and ensure account security—achieving multiple goals with one move.

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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