---
schema_version: "1"
id: b48c8a9a41bc4e80f2824fdbfd23b7faa441b29aa48710e347f7fc890c02a9cf
title: Reach WhatsApp Users with Usernames Using Business-Scoped User IDs
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_mce_reach_whatsapp_usernames.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_mce_reach_whatsapp_usernames.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: c17f033dd974b3cf6f1f8ab31355f2a3f6214a2e1ce6e7205cf98f1a822975fd
description: Maintain contact continuity with WhatsApp users when they hide their phone numbers with usernames. Import contacts with Business-scoped User IDs (BSUIDs), send outbound messages when phone numbers aren't available, and track message engagement across both identifiers. Marketing Cloud supports Meta's BSUID, which identifies users who enable username privacy.
products:
  - Cross Cloud
release: "264"
---
# Reach WhatsApp Users with Usernames Using Business-Scoped User IDs

Maintain contact continuity with WhatsApp users when they hide their phone numbers with usernames. Import contacts with Business-scoped User IDs (BSUIDs), send outbound messages when phone numbers aren't available, and track message engagement across both identifiers. Marketing Cloud supports Meta's BSUID, which identifies users who enable username privacy.

**Where:** This change applies to all Marketing Cloud Engagement editions.