How to Use a Number Screening Platform: Complete Workflow from List Preparation to Result Write-Back

Distinguish carrier-level basic checks from social platform account checks, clarify the operational sequence of E.164 normalization, batch submission method selection, grouped result export, and CRM write-back to help operations and technical teams efficiently clean existing number lists.

How to Screen WhatsApp Numbers? 5 Pre-Contact Self-Checks and Handling Error 1013

This article details WhatsApp number screening from E.164 format normalization to batch registration status checks, plus how to handle errors 1013 and 131026 to lower failure rates and protect your account quality score.

WhatsApp CSV Number Screening: 6 File Preparation Points Before Upload

Learn the six key points for preparing WhatsApp CSV screening files, including E.164 number format, encoding, delimiters, column headers, primary keys, and batching, with a checklist and FAQs.

How to Normalize to E.164 Before International Number Screening? Rules for Rewriting 4 Types of Dirty Numbers

This article details the practical steps for E.164 normalization before international number screening, including rules for identifying and rewriting 4 types of dirty numbers, and why normalization must precede deduplication and platform checks.

How to Detect Number Registration Status? Normalize First, Then Probe

Number registration status detection is feasible but must be independent of official messaging APIs, starting with E.164 normalization and then combining five layers of concepts for detection and authorization.