Complete Guide to Exporting WSID After WhatsApp Number Filtering: How to Obtain WSID for Active WhatsApp Numbers and Use It for Marketing

In overseas marketing and community management, WhatsApp is one of the most essential channels for reaching users. However, traditional manual number verification is not only inefficient but also struggles to obtain WhatsApp’s internal user identifier — wsid. This article will systematically explain the concept of active WhatsApp numbers (ws开通号码) and guide you step by step through exporting wsid from active WhatsApp numbers using KK-DATA, ultimately applying it to precision marketing scenarios.

What Are Active WhatsApp Numbers? Why Export WSID?

Active WhatsApp numbers refer to phone numbers that are registered on WhatsApp and can receive messages. For marketing teams, simply knowing a number is “active” is not enough; they need to further identify the user to avoid duplicate outreach and waste of resources.

wsid (WhatsApp ID) is a unique internal numeric identifier assigned by WhatsApp to each user. Compared to a plain phone number, wsid offers the following value:

• Precise identification: The same number, across different devices or SIM card cycles, generally keeps the same wsid — making it a reliable unique identifier for users.
• Deduplication tool: In batch export results, wsid is more suitable than phone numbers for CRM deduplication, preventing multiple messages to the same user.
• Cross-platform correlation: Combined with the tgid obtained from Telegram filtering, you can build a multi-dimensional user profile across different social platforms.

Therefore, exporting wsid from active WhatsApp numbers becomes a crucial step to improve outreach precision.

How to Use KK-DATA for WhatsApp Number Filtering and WSID Export

KK-DATA’s WhatsApp number filtering feature can batch-check whether numbers are active and export complete results including wsid. Here is the detailed process.

Step 1: Prepare and Upload the Numbers to Check

• Number format: Must use international format, e.g., +8613800138000 or 8613800138000. Formats with country code beginning with 0 are not supported.
• Upload method: In the “Number Upload” module of the KK-DATA console (https://app.kkdata.cc/), choose to upload a CSV or TXT file. One number per line. It is recommended not to exceed 1 million entries.
• Deduplication preprocessing: If you have historical detection results, it is recommended to enable the “Data Deduplication Warehouse” feature. The system will automatically skip numbers already processed, saving your balance.

Step 2: Select Detection Type and Submit the Task

On the upload interface, you will see several detection options (e.g., active detection, valid number detection, gender identification, etc.). You must select “WhatsApp Valid Number Detection” to trigger wsid collection. After checking it, submit the task, and the system will start batch verification.

• The interface will display an estimated cost before submission (charged per number; see the console for real-time pricing).
• After the task is submitted, you can receive a completion notification via Telegram.

Step 3: Export CSV File Containing WSID After Task Completion

Once the task is completed, go to the “Task Details” page and find the “Export” button.

• Field selection: On the export page, check the “wsid” column. By default, the number and detection status are checked; wsid is an optional field.
• Output format: Supports CSV and TXT. CSV is recommended for easier subsequent data processing.
• File size: If the data volume is large (over 500,000 entries), it is recommended to export in batches to avoid slow loading in browsers or tools.

The exported CSV file can be opened directly with Excel or Google Sheets.

What Fields Are Included in the WSID Export Result? How to Interpret Them?

The exported CSV contains multiple fields. It is recommended to check only the fields you actually need to avoid data redundancy.

Mandatory Fields: Number and Detection Status

Field	Meaning
number	The original phone number input (international format)
status	Detection status; valid means the number is active on WhatsApp, invalid means it is not

• status = valid: The number is an active WhatsApp number, and the wsid is valid.
• status = invalid: The number cannot receive WhatsApp messages; the wsid field will be empty.

Core Field: WSID and Its Use

wsid is a string of pure numbers, e.g., 123456789012. It is not publicly known like a phone number, but in WhatsApp Business API or third-party bulk messaging tools, you can reach users directly via wsid without verifying the phone number again.

Note: wsid is not a contact method; you cannot use it to make calls or send SMS. It is mainly used for user identification and deduplication at the API level. If a user deletes their WhatsApp account and re-registers, the wsid may change, but it remains relatively stable in the short term.

Optional Fields: Detection Time, Country/Region, etc.

• Detection time: The exact timestamp when the task was completed, useful for tracing data freshness.
• Country/region code: Automatically identifies the country of the number, can be used for regional marketing filtering.
• Others: Such as gender (requires additional gender identification check), carrier, etc.

When exporting, it is recommended to check only the fields you actually need to reduce file size.

How to Use WSID After Export for Secondary Marketing or Community Operations?

Exporting wsid is not the end; it is the starting point for precise outreach. Here are several typical application scenarios.

Scenario 1: Direct Outreach Without Number Verification

After obtaining records with wsid + status = valid, you can import the data into WhatsApp bulk messaging tools that support wsid. These tools allow direct private messages via wsid, eliminating the need to re-verify the phone number, greatly improving outreach efficiency. Note: Comply with WhatsApp’s policies to avoid abuse leading to account bans.

Scenario 2: Multi-Platform Targeting and Profile Completion

After Telegram filtering, you can also obtain tgid. By matching the same phone number, you can link wsid and tgid to form a dual-platform label for the user. For example:

• Users active on Telegram and active on WhatsApp can be prioritized for multi-round outreach via Telegram DM or WhatsApp messages.
• Based on gender data (obtained through image recognition), you can send different marketing copy on WhatsApp.

Scenario 3: Import into CRM for Precision Retargeting

Import the wsid field into your CRM as a unique user identifier. Subsequent campaigns only need to match wsid to avoid duplicate outreach caused by number changes. Combined with purchase or interest data, you can build more precise retargeting lists.

Note: wsid is more stable than a phone number, but it is not permanent. It is recommended to re-check key users every 1-3 months and update the wsid.

What to Watch Out for When Exporting WSID in Batches?

• Data volume limit: Each task supports up to about 1 million numbers. If more, submit in batches.
• Cost estimation: Charged per number; different detection types have different unit prices. See the console for real-time pricing or the official billing page: https://kkdata.cc/billing/
• Avoid duplicate detection: Use the data deduplication warehouse; the system automatically matches historical wsid results, avoiding duplicate charges.
• Export file security: CSV files contain sensitive information (numbers + wsid). It is recommended to store them encrypted or restrict access permissions.
• Detection type selection: Only by selecting “WhatsApp Valid Number Detection” will the results include wsid. Confirm before submission.

Frequently Asked Questions

Q: What is wsid? What’s the difference from a phone number?

A: wsid is a unique internal identifier assigned by WhatsApp to users (similar to Telegram’s tgid), usually a string of numbers. Unlike phone numbers, wsid does not change when the SIM card is swapped (but may change if the user deletes and re-registers). It can be used to identify the same user across sessions. After exporting wsid, combined with WhatsApp Business API, you can achieve precise message delivery.

Q: Why is the wsid field empty in the exported CSV?

A: Possible reasons: 1) You did not select “WhatsApp Valid Number Detection” type, only doing active detection or gender identification; 2) The number itself is invalid (not registered on WhatsApp), so no wsid is returned; 3) The task is not yet completed, or you did not check the wsid column during export. Please go back to the task details page to confirm the detection type, and re-export with all fields checked.

Q: Can wsid be used for cross-platform correlation?

A: Yes. KK-DATA supports filtering on Telegram, WhatsApp, and other platforms simultaneously, exporting tgid and wsid respectively. By matching the same phone number across different platform IDs, you can build a multi-platform user profile for cross-platform precision targeting. However, note that wsid and tgid are internal IDs of different systems and cannot be directly converted.

Q: What is the maximum number of wsid entries I can export at one time?

A: Each filtering task supports up to about 1 million numbers. The export file size is limited by browser or tool capabilities; if too large, export in batches (e.g., one file per 500,000 entries). For detailed limits, refer to the documentation at https://docs.kkdata.cc/.

Q: How can I avoid duplicate detection of the same numbers after exporting wsid?

A: KK-DATA provides a data deduplication warehouse. Before uploading numbers, the system will automatically match historical wsid results. If the same number has been detected and the result is valid, the system will skip detection and reuse the historical wsid, saving your balance. It is recommended to keep CSV backups after each export and use the deduplication warehouse to reduce duplicate charges.

Summary and Next Steps

Through exporting wsid from active WhatsApp numbers, you can extract actionable unique identifiers from raw WhatsApp user data, laying the foundation for secondary marketing, deduplication, and multi-platform correlation. KK-DATA offers a one-stop pipeline of “generate → filter → export” without requiring a subscription plan — pay per use, ideal for the flexible needs of overseas marketing teams.

Now, you can:

👉 Log in to the console to start filtering
👉 If you encounter any issues, contact customer service via Telegram: https://t.me/kkdata_robot
👉 For more details on fields and parameters, read the full documentation: https://docs.kkdata.cc/

Tip: For first-time use, it is recommended to upload a small batch of numbers (e.g., 100) to test the process before running large-scale tasks.