How to send messages to strangers on WhatsApp

Whether it's Telegram, LinkedIn, or Facebook, the system offers unified management and batch filtering based on age, gender, and activity level, enabling precise multi-platform campaigns.

In the digital marketing wave of 2025, WhatsApp filtering became an essential lesson I couldn't avoid. With over 2 billion WhatsApp users worldwide, accurate WhatsApp filtering directly determined the effectiveness of my promotions.Initially, I thought it was just a simple task of filtering phone numbers, but I ended up taking a lot of detours.

From blind optimism based on "format" to the inefficient and torturous process of manually dialing, and then to discovering the power of ITG's global filtering tool, I finally figured out an efficient method for filtering WhatsApp numbers.This article will share my experience and guide you through the latest WhatsApp number filtering strategy for 2025, with the core tool being ITG full-domain filtering.When I first started screening WhatsApp numbers, I naively thought that as long as the number format "looked right," it was a good number.

This made me realize that the first step in WhatsApp's number screening process is not format calibration, but rather having a scientific verification system.Manual verification is suitable for small-scale testing, but when faced with a database of 100,000+ phone numbers, it's simply asking for trouble.

This tool has completely changed the way I work, not only boosting my efficiency but also making the screening results incredibly accurate.

With over 3 billion WhatsApp users, accurate WhatsApp number filtering is not only key to improving conversion rates, but also an essential means to avoid wasting resources and compliance risks.Intelligent tag generation: Automatically tags valid accounts with "activity tags", "demand tags", and "spending potential tags" without manual tagging.

The root cause of high costs in cross-border marketing lies in "resource mismatch"—investing budgets and energy in ineffective accounts. WhatsApp account screening is key to solving this resource mismatch.By using ITG's full-domain filtering, enterprises can efficiently eliminate invalid numbers and focus on high-value customers, achieving a triple optimization of "reduced push costs, improved manpower efficiency, and saved opportunity costs".

In today's increasingly competitive cross-border marketing environment, "cost control" is just as important as "effectiveness improvement".Prioritizing WhatsApp account screening and using ITG's comprehensive filtering to build a precise and effective customer pool is crucial to maximizing the value of every marketing investment and achieving low-cost, high-efficiency growth in cross-border business.