Complete Guide to Bulk WhatsApp Number Verification: Creating Tasks, Uploading Lists, and Exporting Valid Numbers in KK-DATA Console

Overseas marketing teams, cross-border e-commerce operators, and independent site promoters deal with massive phone numbers daily. Whether it’s cleaning old contacts, verifying user registration validity, or preparing clean lists for WhatsApp community management, bulk WhatsApp number verification is a fundamental and frequent task. Manually checking each number consumes manpower and cannot guarantee efficiency. This article will guide you step by step through the complete process—from creating a task, uploading a list, to exporting valid numbers—in the KK-DATA console, and also answer common questions.

What is Bulk WhatsApp Number Verification and Why Do Overseas Teams Need It?

Bulk WhatsApp number verification refers to using a professional detection platform to automatically verify a batch of phone numbers, determining which numbers are registered on WhatsApp (i.e., “valid”) and whether they are in a state capable of receiving messages (“active” or “inactive”). For overseas teams, the value of this capability is reflected in:

• Cleaning invalid contacts: Avoid sending messages to empty numbers or numbers not registered on WhatsApp, saving marketing budgets.
• Optimizing user profiling: Combine with data like gender identification for more precise promotion targeting active users.
• Improving ROI: Sending campaign notifications only to valid numbers results in significantly higher conversion rates than blind bulk sending.
• Protecting sending accounts: Frequently sending messages to invalid numbers may lead to WhatsApp account restrictions.

Manually verifying a single number takes about 10 seconds; for 1,000 numbers, manual operation takes nearly 3 hours. With KK-DATA’s batch tasks, even 1 million numbers can be detected within minutes—a huge efficiency gap.

Preparation: What Tools and Materials Do You Need?

Before starting your first bulk WA number verification task, ensure the following conditions are met:

1. Computer or mobile browser: The KK-DATA console (https://app.kkdata.cc/) supports all mainstream browsers. It is operable on mobile but recommended on a computer for large batches.
2. List of numbers to verify: Recommended format is CSV or TXT, with one number per line, including the full international country code (e.g., China 86, USA 1). Do not include spaces, parentheses, or dashes.
3. KK-DATA account and balance: After registration, log in to the console and ensure sufficient balance. Tasks cannot be submitted if the balance is insufficient.

Number List Format Specifications

A standard number list example (TXT format):

8613800138000
8613900139001
12015551234
447700900000

Notes:

• Do not add a + sign before the country code (the system handles it automatically, but it is recommended not to add it).
• Remove all spaces, dashes, parentheses, and other symbols from numbers.
• If exporting from Excel, first save the column as “Text” format, then export as CSV to avoid scientific notation altering digits (e.g., turning into 1.38E+11).

Balance Check and USDT Top-Up Reminder

After logging into the console, you can see your current balance (counted in USDT) in the top-right account menu. If the balance is insufficient:

• Click “Top Up” and use a USDT (TRC20) address to transfer funds. Minimum top-up is approximately 50 USDT.
• The balance updates automatically after the transfer is received; no manual confirmation needed.
• Specific unit prices depend on the real-time prices in the console. Different detection types (valid, active, export wsid) have different rates. Before recharging, you can check the Billing Instructions.

How to Create and Complete a Bulk WhatsApp Number Verification Task?

Creating a task in the console takes only 5 steps:

1. Click “Screening Tasks” in the left navigation → “Create Task”.
2. Select platform as “WhatsApp”, and check detection types “WA Valid” and “Export wsid” (also choose “WA Active” etc. as needed).
3. Upload the number list: supports manual input, file upload, or import from data warehouse.
4. Confirm the estimated cost (the console displays the expected balance consumption for the current task).
5. Click “Submit”, and the task enters the queue.

3 Methods to Upload a List

Upload Method	Operation	Suitable Scenario	Capacity Limit
Manual Input	Paste numbers in the text box, one per line	Small batches (tens to hundreds)	About 5000 lines
File Upload	Upload CSV or TXT file (supports zip compression)	Medium to large batches (thousands to millions)	Up to about 1 million per task
Import from Data Warehouse	Choose a previously uploaded and deduplicated warehouse	Reuse cleaned data to avoid duplicate charges	Depends on warehouse remaining quantity

Task Status and Notifications After Submission

After submission, the task status goes through:

• Queued: Waiting for resource allocation; usually enters processing within minutes.
• Processing: The system is detecting numbers one by one; progress percentage refreshes in real time.
• Completed: Detection finished; results can be downloaded.

You can see the detection status of each number on the “Task Details” page. If you want to receive a notification when the task is completed, bind your Telegram account in the console under “Settings” → “Notifications” and enable bot notifications (search and follow @kkdata_robot). Once the task completes, the bot will push a message, so you don’t have to keep refreshing the page.

Why Are Number Deduplication and Warehouse Functions Important?

In multiple verification tasks, different lists may contain the same numbers. Detecting duplicate numbers each time wastes balance. KK-DATA’s data deduplication warehouse function solves this:

• Cross-task deduplication: Each uploaded number is automatically stored in the “Data Warehouse”. When submitting a new task, you can choose “Import from Warehouse”, and the system will automatically skip already detected numbers, charging only for new ones.
• Active management: On the “Data Warehouse” page in the console, you can view all uploaded numbers and their detection results, filter by platform, time, and valid status, and also batch export valid numbers from the warehouse.

Best Practice: If you plan to run multiple WhatsApp communities long-term, store all accumulated contacts in the data warehouse. Each new list should be compared with the warehouse for deduplication before submitting a task. This can save 30%–50% of detection costs.

Exporting Screening Results: How to Get Usable WhatsApp Numbers?

Once a task is completed, click “Export Results” on the task details page, select the format (CSV or TXT), and the system will generate a file containing the following fields:

• Original number (with country code)
• Detection status: Valid / Invalid / Unknown
• Active status (if active detection was selected): Active / Inactive
• wsid (if wsid export was selected): The WhatsApp ID corresponding to each number, used for API calls or system association
• Gender (if gender identification was selected): male / female or unknown
• Detection timestamp

After export, it is recommended to classify and store results by valid status, for example:

• valid_wa.csv: Contains only numbers with status “Valid”, for marketing campaigns.
• all_results.txt: All detection results, for subsequent data auditing.

Common Export Formats and Scenario Selection

Format	Advantages	Suitable Scenarios
CSV	Can be directly imported into databases, Excel, CRM systems; has clear field headers	Data storage, secondary analysis
TXT	Small file size; easy to paste into messaging tools or scripts	Quick invocation, command-line tool integration

How to Verify That Numbers Are Really Valid After Bulk Verification?

KK-DATA’s “WA Valid” detection is based on real-time queries against the WhatsApp registration database, with reliability over 95%. However, note: Valid does not mean the other party is online or willing to reply. Two methods can further verify:

1. Send test messages in small batches: Randomly select a few dozen “valid” numbers from the export results, send a polite greeting via WhatsApp Business API or manually, and observe delivery status (one checkmark means delivered, two gray checkmarks means read).
2. Combine with marketing systems: Import the valid numbers into your CRM, run an A/B test, and compare open rates and reply rates of the valid number group.

If you find that a very small number of numbers detected as valid are actually undeliverable, contact KK-DATA customer service with the task ID, and the platform will check the backend logs and handle it.

How to Reasonably Control the Cost of Bulk WA Number Verification?

Bulk detection is charged per number, but the following strategies can help you save costs:

• Use the data warehouse for deduplication: Different projects within a community may use the same number pool. Deduplication ensures only new numbers are detected, avoiding duplicate charges.
• Submit in batches: If a single task exceeds 500,000 numbers, it is recommended to split into 2–3 batches with 1–2 hour intervals to avoid resource scheduling pressure affecting speed (actual speed depends on current platform load).
• Select detection types as needed: If you only need valid status, do not check “Active Detection” or “Gender Identification”; only select “WA Valid” and “Export wsid”. These detection types have the lowest unit price.
• Clean the format: Before uploading, use regular expressions or Excel to remove spaces and illegal characters, reducing the number of invalid numbers (invalid numbers are also charged).

Frequently Asked Questions

Q: What is the difference between “WA Valid” and “WA Inactive” in KK-DATA?

A: “WA Valid” means the number is registered on WhatsApp and can receive messages. “WA Inactive” typically means the number has been offline for a long time (the specific duration definition is subject to the console description) or is considered an inactive user. It is recommended to prioritize sending to “WA Valid” numbers, and reduce frequency or perform warming actions for “Inactive” numbers.

Q: Can I upload Excel files for bulk WA number verification?

A: The console currently does not support direct upload of .xlsx or .xls files. It is recommended to save your Excel file as “CSV UTF-8 (comma delimited)” to ensure correct data format before uploading.

Q: What is the maximum number of numbers I can upload in a single bulk WA verification task?

A: A single task can handle up to approximately 1 million numbers. If you need to verify more than 1 million numbers, submit them in multiple tasks and use the data warehouse deduplication function to merge results, avoiding repeated detection.

Q: If the uploaded numbers include empty or invalid numbers, will I still be charged?

A: Yes. Regardless of whether the detection result is valid, invalid, or unknown, detection resources have been consumed. Therefore, each number is charged based on the actual detection count. It is recommended to clean the format before uploading, filtering out entries that are clearly not phone numbers (e.g., wrong digit count, no country code) to reduce unnecessary costs.

Q: Does KK-DATA’s bulk WA number verification support exporting wsid?

A: Yes. When creating a task, check “Export wsid”. The downloaded result file will include the WhatsApp ID (e.g., 1234567890-1) corresponding to each number, facilitating identity association or API calls with your system.

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👉 Log in to the KK-DATA Console now to create your first bulk WhatsApp number verification task! If you encounter any issues during operation, don’t forget to use the two-way contact customer service bot https://t.me/kkdata_robot for real-time assistance. For more product information and use cases, visit the Official Website and Documentation.