How much can WhatsApp's last seen time tell you? Learn how to accurately identify active users.

The system automatically removes unused and anomalous accounts, combining detailed and automated filtering to ensure more accurate promotional data.

For cross-border merchants doing WS marketing, the biggest headache is the "invalid number trap": a list of numbers purchased at great expense might only receive a reply to 10 out of 1000 messages sent, with over 60% being invalid or cancelled numbers.Blindly pushing content to risky accounts resulted in the newly established WS account being banned within 3 days, causing all initial investments to go down the drain.

In fact, professional WS number filtering software is the key to solving these problems: WS number filtering software can quickly eliminate invalid numbers, ensuring that every penny of marketing expenditure is spent effectively.The ITG Global Screening WS account filtering software offers dual protection of "precise filtering + safe account nurturing." Even complete beginners can easily use the WS account filtering software to improve efficiency and double their marketing results.In 2025, WS platform upgraded its risk control measures. Invalid numbers not only waste money but may also trigger account bans. WS number filtering software is the "cost protector" for merchants.

After the filtering is completed, a detailed report is generated, showing the number of valid numbers, the percentage of invalid number types (empty numbers 20%, virtual numbers 5%, etc.), the percentage of target customers, and other data, making the results clear at a glance;If your WS account isn't properly nurtured, all your efforts in screening customers will be wasted. Use the account nurturing function of this WS account screening software to make new accounts as stable as old ones.

With cross-border marketing costs remaining high, instead of wasting money on invalid numbers, it's better to use ITG's global filtering WS number filtering software to precisely break through the bottleneck.

It can not only quickly eliminate invalid numbers and target precise customers, but also ensure account security, so that every investment will be worthwhile.For businesses, choosing the right WS account filtering software is more important than blindly working hard. Now, use ITG's full-domain filtering; you can learn to filter in 10 minutes and master account nurturing techniques in a week. Say goodbye to ineffective costs and transform WS marketing from "burning money without reward" to "highly efficient and stable profit-making," achieving doubled performance as soon as possible!

In today's fast-paced digital marketing environment, manually sifting through WhatsApp numbers has become a major bottleneck restricting business efficiency.Professional WS screening software is completely changing this situation, achieving exponential efficiency improvements through intelligent technology.

This article will provide an in-depth analysis of how ITG Global Screening, a WS number screening software, helps businesses accurately screen 100,000 numbers within an hour, freeing up marketing teams to focus on higher-value strategic work.It is difficult to ensure the consistency of screening criteria, and the results vary significantly among different personnel.