Input and output fields
Messaging checks are most useful when the output is attached to the original phone list as clear channel columns.
| Input | Checks | Output |
|---|---|---|
| Phone number | WhatsApp, Telegram, Viber, LINE, Zalo, Signal | app_registered, app_not_matched, review |
| Country or market | Country-aware normalization and product selection | normalized_number, country, product columns |
| Campaign channel | Phone validation plus selected messaging app checks | send, suppress, review exports |
Use cases for messaging app checking
Use messaging app checks before WhatsApp campaigns, Telegram community cleanup, regional app outreach, CRM enrichment, lead vendor review, and channel selection for mixed-country contact files.
Recommended sequence
- normalize phone numbers with E.164 Phone Number Format
- clean the list with Phone List Cleaning
- validate number quality with Phone Validator
- run WhatsApp, Telegram, or other messaging app checks from Products
Security and limits
Messaging lookup results are operational signals for routing and segmentation. They do not prove identity, guarantee delivery, or authorize outreach without consent. Coverage depends on product, country, and data availability.