Number Screening System Active Window Configuration Strategy: How to Choose Between 7, 15, and 30 Days? (With Operation Guide)

In cross-border marketing, using a number screening system to batch verify the validity and activity of Telegram and WhatsApp numbers is a key step to improving reach efficiency. However, many teams only focus on whether a number is “registered” on the platform, neglecting a deeper metric — activity. This article will break down the core concepts of active window configuration in number screening systems, the applicable scenarios for different windows (7, 15, and 30 days), and provide a hands-on guide using KK-DATA as an example. Mastering this strategy will help you significantly improve ROI on precision lead generation and avoid budget waste.

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What Is Active Window Configuration in Number Screening Systems?

Simply put, active window configuration means specifying a time period (e.g., the last 7, 15, or 30 days) during which the screening system only retains numbers that have had online activity. For example, a number registered on Telegram but not opened in the last 30 days will not be considered “active” and will not be selected.

This configuration directly affects the quality and cost of the final output:

• Narrower window (e.g., 7 days): highest activity and likely better response rates, but lower pass rate (hit rate) and relatively higher unit cost.
• Wider window (e.g., 30 days): larger coverage, but some numbers may be dormant, reducing subsequent marketing effectiveness.

Therefore, active window configuration in number screening systems is a trade-off between quality and quantity, and should be flexibly decided based on your marketing scenario.

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Core Differences Between Active Windows (7, 15, 30 Days)

The KK-DATA platform offers three preset windows for “tg_active” detection: 7 days, 15 days, and 30 days. The table below compares their characteristics:

Window Days	Number Activity	Number Quantity (Pass Rate)	Recommended Scenario	Notes
7 days	Highest	Lowest	Limited-time events, high-urgency pushes, scenarios requiring immediate replies	Number inventory may be insufficient; requires a large base pool of numbers
15 days	Medium	Moderate	Daily marketing, community growth, brand soft-touch campaigns	”Safe configuration” for most scenarios; recommended for first-time users
30 days	Lower	Highest	Re-engaging dormant users, long-term follow-ups, low-frequency touchpoints	Should be combined with other filters (e.g., country, gender) to improve overall quality

7-Day Active Window — Highly Engaged Users, Ideal for Short-Term Campaigns

If you are running a limited-time discount or a live-streaming event and expect recipients to click links or reply immediately, the 7-day active window is your best choice. These users are frequent platform users with high message sensitivity and strong conversion potential. The downside is a low pass rate; you may need to upload 3–5 times more raw numbers than expected to get enough active numbers.

15-Day Active Window — Balanced and Stable, Ideal for Daily Marketing

For most routine cross-border marketing (e.g., independent store product testing, Telegram group recruitment), 15 days offers an excellent balance. It removes users inactive for more than half a month while retaining numbers with decent activity and sufficient quantity. Internal KK-DATA user statistics show that the 15-day window pass rate is typically 2–3 times that of the 7-day window, while the subsequent reply rate drops only 10%–15%, making it the most cost-effective option.

30-Day Active Window — Wider Coverage, Suitable for Reaching Lurkers

If your product is in the cold-start phase of community maintenance or requires low-frequency “awareness” pushes, the 30-day window helps you reach more potential users. For example, some users only open Telegram once a month to check messages. While such numbers may respond slowly, they still have the potential to be reactivated. Combined with invalid number/carrier detection, you can exclude deactivated numbers and further improve data quality.

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How to Configure Active Window in a Number Screening System (Using KK-DATA as an Example)

Below is the complete process from preparing numbers to exporting results using the KK-DATA console (https://app.kkdata.cc/).

Step 1: Prepare and Upload Numbers to Be Screened

Ensure your number list is in TXT or CSV format, with one number per line (including country code, e.g., 8613800138000). We recommend using the platform’s data deduplication warehouse to clean duplicates and avoid paying for the same number multiple times.

Go to the console → Select “Create Screening Task” → Upload the number file or paste the text. Supports up to about 1 million numbers per task.

Step 2: Select Detection Type and Configure Active Window

In the “Detection Type” section, check tg_active (or the platform you need). The window options will appear:

• 7 days (last 7 days)
• 15 days (last 15 days)
• 30 days (last 30 days)

Choose one based on your scenario. If you also need to detect gender or export tgid, you can check those simultaneously. Multiple detection types are billed separately, but the system will combine them into one pass.

Step 3: View Estimated Cost and Confirm Task

Before submission, the system will show the estimated cost (per number, no subscription plan) based on the number sample and selected detection types. Confirm that your balance is sufficient. If not, recharge via USDT (TRC20) (minimum ~50 USDT). Click “Submit Task”.

Step 4: Receive Task Completion Notification and Export Results

After the task completes, you can receive a completion notification via the TG bot (@kkdata_robot). Download the result file (CSV/TXT) from the “Task List” in the console. The results include the detection status for each number: valid/invalid/active within window/inactive, etc.

Note: Active numbers are marked in green; inactive (but registered) numbers are marked as “tg_valid” but not active; unregistered numbers are directly eliminated.

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Common Misconceptions and Tips for Active Window Configuration

Beginners using number screening systems often fall into the following traps. Please avoid them:

1. Blindly choosing 7 days for all scenarios
   Greedy for “highest activity,” only to find a pass rate of just 5%–10%, causing the cost per effective lead to skyrocket. It’s recommended to start with 15 days as the baseline and adjust based on ad reply rates.

2. Ignoring data deduplication, leading to repeated charges
   Uploading the same numbers in different tasks without going through the deduplication warehouse means the same number may be detected multiple times, wasting balance. KK-DATA’s built-in deduplication warehouse should always be used before upload.

3. Setting a window without checking balance
   A narrower active window may seem cheaper per unit (same unit price), but because the number of valid results is smaller, you may need to submit multiple tasks, increasing total consumption. It’s advisable to control the total number of detected numbers per task to avoid exhausting your balance.

4. Neglecting combination with other detection types
   If you only detect activity but skip invalid number/carrier detection, some fake numbers may slip through, wasting downstream contact costs. Ideal plan: first run “invalid number + carrier” cleaning, then “tg_active”, and finally add gender identification as needed.

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[Strategy Templates] Recommended Window Combinations for Different Marketing Scenarios

Below are recommended configurations for common cross-border scenarios (prices are real-time in the console):

Marketing Scenario	Recommended Active Window	Companion Detection Items	Notes
Telegram group recruitment (volume)	15 days	tg_valid + gender identification	Gender can be used for targeted messaging
Independent store product testing (flash sale)	7 days	tg_valid + invalid number detection	Ensure numbers are both active and real
Agency batch outreach	30 days	Global number generation + invalid number detection	Generate potential numbers in bulk first, then filter
WhatsApp market research	15 days	WhatsApp_valid + wsid export	wsid is used for precise message delivery

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Three Key Principles for Using Active Window Configuration to Improve ROI

1. Test small before scaling
   Don’t upload 100,000 numbers from the start. Use 500–1000 samples to test the 7-, 15-, and 30-day windows. Decide the final window based on actual valid number counts and subsequent conversion data (e.g., join rate, click rate).

2. Combine with data deduplication warehouse to avoid repeated charges
   Repeated detection is the biggest hidden cost. KK-DATA’s data deduplication warehouse supports cross-task deduplication. Use the “deduplicate + supplement” feature before uploading.

3. Adjust window dynamically based on feedback
   If you notice that the reply rate for the 15-day window numbers is lower than expected for several consecutive days, consider switching to 7 days. If the number inventory is insufficient, upgrade to 30 days. There is no fixed “optimal window”; only the strategy best suited for your current stage.

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Relationship Between Active Window Configuration and Platform Billing

Many people wonder: does a narrower window increase detection costs? The answer is no. KK-DATA charges per number. The unit price for activity detection is the same as for standard valid detection (see console for specific pricing). The window width only affects the number of active numbers finally returned, not the per-query cost.

Key reminder: Focus on “cost per effective lead” rather than “total consumption”. For example:

• With a 7-day window, detect 100,000 numbers, consume 100,000 (assuming unit price a), get 10,000 active numbers → cost per effective lead = 10.
• With a 30-day window, detect 100,000 numbers, consume 100,000, get 40,000 active numbers → cost per effective lead = 2.5.

Even though total consumption is the same, the latter has a lower unit cost. However, if the reply rate of the 30-day window numbers is only 1/4 of the 7-day window, the final cost per effective action may be similar. Therefore, window selection should be evaluated in combination with subsequent conversion rates.

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Frequently Asked Questions

Q: What is the difference between active window configuration and standard “valid number detection”?
A: Valid number detection only checks whether a number is registered on the platform. Active detection further filters numbers that have had online activity (e.g., opened the app, sent/received messages) within the specified number of days. Active numbers are more precise and suitable for scenarios requiring immediate reach.

Q: Does configuring an active window increase detection costs?
A: No. KK-DATA charges per number. The unit price for activity detection is the same as for standard valid detection. The stricter filter only affects which numbers are returned; the deduction is based on the number of numbers actually detected. As long as the task is correctly submitted, the deduction is unrelated to the window setting.

Q: The number of 7-day active window numbers is very low. What should I do?
A: Try a wider window (15 or 30 days), or check whether your uploaded number pool is outdated. We recommend testing with a sample first. If the number count is insufficient, consider supplementing with fresh numbers from the global number generation module before screening.

Q: Does the system support custom active days (e.g., 10 days, 20 days)?
A: KK-DATA currently offers three preset windows (7, 15, 30 days) and does not support custom days. If you need precise day counts, choose the closest window or combine other filters (e.g., gender, country) for further segmentation.

Q: How can I determine if my current active window is appropriate?
A: Validate by comparing the subsequent conversion data (e.g., join rate, reply rate) of the “active numbers” exported after the task. If the conversion rate is significantly lower than that of other batches, the window may be too wide, causing quality degradation. Conversely, if the conversion rate meets expectations, the window setting is reasonable.

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Now go ahead and configure your first active window task. Generate numbers for free, filter on demand, and never waste a single balance.

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Official website: https://kkdata.cc/
Documentation: https://docs.kkdata.cc/