---
schema_version: "1"
id: cbacc23c2d3efbea76d71468ebd16cfb2bd2d2f238e2f6e65f4ad98652337a58
title: Channels
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/264-0-0/rn_mktg_channels.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_mktg_channels.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 8c4b19831f7c1ab0f6d4ddb0c0bcc4eda299866a075eea65ddc52227d4427300
description: Send more effective RCS messages and report on their performance with expanded channel support and tooling. Target audiences on mobile with flash messaging, and reach WhatsApp customers with usernames when their phone number isn't available.
products:
  - Cross Cloud
release: "264"
---
# Channels

Send more effective RCS messages and report on their performance with expanded channel support and tooling. Target audiences on mobile with flash messaging, and reach WhatsApp customers with usernames when their phone number isn't available.

- **[Do More with RCS Messaging in Marketing Cloud Next](https://help.salesforce.com/s/articleView?id=release-notes.rn_mktg_rcs.htm&release=264.0.0&type=5)**  
    Marketers can now build interactive mobile experiences, manage RCS campaigns directly from the Campaign tab, control business unit access, and track the performance of the Send RCS Message flow element in Flow Builder.
- **[Reach WhatsApp Recipients with Usernames via Business-Scoped User IDs](https://help.salesforce.com/s/articleView?id=release-notes.rn_mktg_reach_whatsapp_usernames.htm&release=264.0.0&type=5)**  
    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.
- **[Prepare for the WhatsApp Account Model Update](https://help.salesforce.com/s/articleView?id=release-notes.rn_mktg_whatsapp_wame.htm&release=264.0.0&type=5)**  
    Meta is separating business phone numbers from provider-specific templates and billing through its WhatsApp Account Model Evolution update. You can now use a single WhatsApp phone number across Salesforce and another provider simultaneously without disrupting existing journeys, templates, or API integrations.
- **[Send High Throughput Flash Messages to Targeted Mobile Audiences](https://help.salesforce.com/s/articleView?id=release-notes.rn_mktg_flash_audiences.htm&release=264.0.0&type=5)**  
    Send high throughput messages to mobile app users with flash sending, which supports up to 5 million messages in 90 seconds. You can now segment users by custom attributes, such as interests in politics or sports, to subscribe them during device registration. When you send a flash message, select your target audience to make sure that every user receives relevant content.