How to use Zalo to activate data to improve ROI? A complete tutorial from screening to precision marketing

In cross-border e-commerce and overseas marketing in Southeast Asia, Zalo is a key social channel in markets such as Vietnam, Thailand, and Indonesia. However, when many teams send out mass promotions, they find that a large number of numbers cannot be registered, are inactive, or have gender mismatches, resulting in high costs and low conversion rates. The core of the problem is that you did not use zalo to activate data. This article will systematically explain how to obtain verified Zalo valid numbers through screen numbers, combine gender and activity fields for targeted reach, and use the pay-per-item model to truly improve ROI. Whether you are an independent website seller who is new to Zalo marketing or you are running a studio, you can directly apply the three-step process here.

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What is Zalo activation data? Why is it critical to ROI?

zalo activation data refers to the mobile phone number of Zalo users that has been tested by the platform and confirmed to be registered and in a valid state. In contrast, there are “invalid numbers” that are unregistered, canceled or temporarily unavailable. If you send bulk messages without screening numbers, you will pay message fees (such as SMS, chat tool API fees) or waste manual time for a large number of invalid numbers. Assuming 60% of your list is invalid numbers, 6 out of every 10 messages are wasted money. After using zalo to activate data, you can only target users who have already activated it. The cost can be directly reduced by 40%-60%, and the ROI will naturally increase.

Taking the Vietnamese market as an example, a mobile phone can send hundreds of private messages every day. If the number is efficient, the conversion probability will increase significantly. zalo activation data is a “filter” for testing new markets at low cost.

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How to obtain high-quality Zalo activation data? (Detailed 3-step process)

From the original number list to the directly usable zalo activation data, it needs to go through three steps: generation, screening, and export. The following uses the KK-DATA platform as an example, and the steps are applicable to any similar tool.

Step 1: Generate or import target number list

You have two ways to prepare the list of numbers to be tested:

1. Use the global number generation function: KK-DATA covers 240+ countries/regions and can randomly generate numbers according to country codes or number segments. For example, select the Vietnam (+84) number range, specify the quantity, and the system will automatically generate a batch of numbers. This feature is completely free and does not consume your balance.
2. Upload your own CSV: If you already have a list of numbers (for example, obtained from exhibitions or website registrations), directly upload the CSV file. Note that each line in the file contains a mobile phone number, and the first line can contain a header (such as phone).

Check points:

• Make sure the number format is international (e.g. +84901234567).
• Vietnamese numbers usually start with +84 and are 11 digits long (including country code).

Step 2: Submit Zalo activation detection task and configure parameters

After logging in to the console, enter the “Screen Number Task” module and select the sieve number type as Zalo. At this point you can configure the following parameters:

• Detection Type: Checking “Enabled/Valid” is the basis; if further screening is required, “Gender” and “Activity” can be checked at the same time. Activity generally has windows of the past 1 day, 3 days, 7 days, etc. to choose from.
• Task Name: It is recommended to use the format of “Vietnamese Women—E-commerce Promotion—20250301” to facilitate subsequent tracing.
• Estimated Fee: The system will display the estimated deduction amount based on the number of numbers and the selected test items. All prices are subject to the real-time price of the console, there is no need to worry about the specific unit price.

After submitting the task, the system starts batch detection. When the task is completed, you will be notified via Telegram (notification settings need to be configured in advance).

Step 3: Export the filtering results and analyze them

After the task is completed, you can export a CSV or TXT file on the “Task Details” page. Exported fields typically include:

Field	Description
phone	Original mobile phone number
is_active	Whether to activate (1/0)
gender	Gender (male/female/unknown)
activity_level	Activity level (high/mid/low)
uid	Zalo internal UID (used for secondary matching)

After importing data into your CRM or email marketing system, you can:

• Only the numbers of is_active=1 are retained to form zalo activation data.
• Filter target gender based on gender.
• Eliminate low activity numbers according to activity_level.

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How can Zalo activate data to directly reduce customer acquisition costs?

Compare two scenarios:

Scenario A: Bulk sending without filter number

• List: 10,000 numbers, actual effective activation rate 40%
• Message cost: Assume 0.01 per message → 10,000 × 0.01 =100
• Reached real users: only 4,000 people, average customer acquisition cost (based on reach) US$0.025

Scenario B: Use zalo to activate data and then send it in bulk

• Number screening cost: Detect 10,000 numbers, estimated based on console real-time price (usually much lower than message cost)
• Filter out activation numbers: 4,000
• Message cost: 4,000 × 0.01 = $40
• Reached real users: 4,000 people, average customer acquisition cost is US0.01 (still less than US0.013 including screening fee)

Obviously, screening numbers saves all investment in invalid numbers and increases ROI by more than 2 times. If your budget is limited, this model allows you to spend your money wisely.

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How to use gender and activity fields to further optimize ROI?

Simply filtering for “activated” isn’t enough - you can further refine by using the Gender and Activity fields to increase the value of a single touch.

Gender Fields: Best Practices for Male/Female Targeting

Let’s say you sell women’s cosmetics in the Vietnamese market. Pushing messages only to female users will significantly increase your conversion rate. Check “Gender Detection” in the Zalo screening task, export and filter gender = female, and you will get a zalo activation data list of pure female users.

Case scenario: After a seller screened 50,000 Vietnamese numbers, only 23,000 female active numbers were retained, and the click-through rate of private messages increased from 1.2% to 4.5%. Although the cost of screening has increased by a small amount, the cost of acquiring customers per order has dropped by 60%.

Activity field: avoid wasting costs on “zombie accounts”

Even if the number is activated with Zalo, if the user has not been online for more than 30 days, there is a high probability that the private message will not be opened. You can filter out high-potential users by specifying “Active in the last 3 days” or “Active in the last 7 days.” Just filter activity_level = high after exporting (the specific threshold is subject to the console).

Recommendation: Use high activity windows for time-sensitive promotions (such as limited-time discounts); use lower activity windows for brand content push to expand coverage.

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Cost control: How can itemized billing help you spend money wisely?

KK-DATA adopts the “recharge balance + deduction by item” model, with no monthly subscription fee. This means you have the flexibility to work with your project budget.

Why is per-item billing more cost-effective than monthly subscription?

• Zero Waste: If you only need to screen 10,000 items this month, the monthly subscription may cost 500 yuan, and the per-item billing only costs a few yuan.
• Controllable Budget: You can see the estimated deduction before each task, so you won’t overspend.
• Small team friendly: Even if you are testing the Southeast Asian market personally, you can start with a minimum deposit of 50 USDT (approximately 350 yuan), and the threshold is very low.

How to estimate costs and avoid overage?

When submitting a screening task, the console will display the “estimated deduction” number. You can also check the remaining points on the “Balance” page. In addition, the Data Deduplication Warehouse function can automatically exclude previously detected numbers to avoid repeated deductions.

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FAQ

Question: How accurate is the filter number of Zalo activation data?

Answer: KK-DATA’s Zalo activation detection has passed official interface and protocol verification, and its accuracy is at the mainstream level in the industry. It is recommended that you verify the results with a small number of test numbers first, and then use them in large quantities after confirmation.

Question: What fields can be exported after the screening is completed? Does it include mobile phone number?

Answer: The exported fields include mobile phone number, activation status (yes/no), gender, activity level, UID, etc. The specific fields are subject to the current version of the console, and CSV and TXT formats are usually supported.

Q: Can I filter Zalo users outside Vietnam?

Answer: Yes. KK-DATA supports global number generation, and Zalo filter numbers cover major Southeast Asian countries such as Vietnam, Thailand, and Indonesia. You can specify the country code in the task or filter by number segment.

Question: Can I only use USDT for recharging? What is the minimum amount?

Answer: Currently only USDT (TRC20) anonymous deposit is supported, with a minimum of about 50 USDT. After recharging, the balance will be automatically updated. There is no subscription fee, and fees will be deducted based on the number of tests.

Question: How many Zalo numbers can be screened at one time?

Answer: A single task supports up to about 1 million numbers. It is recommended to remove duplicates from the number list before submitting it to avoid wasting balance through repeated detection.

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Summary and next steps

Through this article, you should have understood: Zalo activation data is the first level to improve ROI-eliminating ineffective costs and accurately targeting people. From number generation to screening number export, the entire process can be completed within a few hours at a very low cost. If you are still using your original number to send mass messages, you might as well try this efficient route immediately.

👉Log in to the console to start screening numbers Two-way customer service https://t.me/kkdata_robot — Any operational questions can be communicated directly.
For more documentation and tutorials, see https://docs.kkdata.cc/.