---
schema_version: "1"
id: e3f30305cb3e4fe82695cfe15f1eaf52933afd6c8fc9320d8944769c174010b5
title: Preview Mobile Subscriber Details
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_ceb_subscriber_preview.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_ceb_subscriber_preview.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: ba345fd0d7572b923ff89d2870d5e53f1ee3a73e705fe6485c3fa23b6fede017
description: Before sending, get a subscriber-level preview for mobile messages that use Marketing Cloud Engagement Content Builder. Use Subscriber Preview to see personalization and code rendered for that subscriber.
products:
  - Marketing
  - Marketing Cloud Engagement
release: "264"
---
# Preview Mobile Subscriber Details

Before sending, get a subscriber-level preview for mobile messages that use Marketing Cloud Engagement Content Builder. Use Subscriber Preview to see personalization and code rendered for that subscriber.

This feature uses the Content Builder > Assets > Subscriber Preview permission. This permission is enabled by default for Marketing Cloud Engagement Administrator, Viewer, Channel Manager, and Editor/Publisher roles.

![Important](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_content_creation-264-0-0-production-enus/453b15fc-ab47-40df-8f11-8a7b92c8d0cd/images/icon_important.png)

Important Previewing SMS messages is only available when performing a Data Extension SMS send, and is usually unavailable for Journey Builder sends which don’t require a Locale Field in the entry data extension to send the message. To select a data extension for a Content Builder message preview, first prepare the data extension for a Data Extension SMS send. See [Data Extension Sends](https://help.salesforce.com/s/articleView?id=mktg.mc_moc_data_extension_sends.htm&language=en_US).

1. When creating a mobile message in Content Builder or Journey Builder, click **Subscriber Preview**.
2. To choose which subscribers to preview, click **Select Source**
3. Select a source and click **Select**.
4. To preview the personalized message, click through subscribers.
5. To preview the message for different devices and message types, use the dropdowns.
6. To preview the message with a different source, click **Change** and select another source.
7. To preview with all data, including demographics data, select an app.
8. Click **Return to Editor**.