---
schema_version: "1"
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title: Litmus Email Previews Frequently Asked Questions
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_es_litmus_email_previews_in_email_studio_faq.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_email_previews_in_email_studio_faq.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 024c2ac9dd52cc829dac86406c8e6c9d9c60c02f04719a4a44fe72f0f5093a5f
description: Review frequently asked questions about Litmus Email Previews for Content Builder.
products:
  - Marketing
  - Marketing Cloud Engagement
release: "264"
---
# Litmus Email Previews Frequently Asked Questions

Review frequently asked questions about Litmus Email Previews for Content Builder.

- **[What Litmus Plan Is Required to Access the Integration?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_plan.htm&release=264.0.0&type=5)**  
    Only Litmus Enterprise accounts can access this integration. Free Litmus Demo accounts do not work with this feature. If you don’t have a Litmus account, sign up for a Litmus Enterprise free trial access for seven days through the integration.
- **[How Does This Work with Different Users?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_user_credentials.htm&release=264.0.0&type=5)**  
    Litmus authenticates each user’s Litmus credentials. Multiple users using a shared Litmus account can’t view the previews unless they sign in with their Litmus user credentials.
- **[What If a Preview Takes a Long Time to Load or Displays an Error?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_preview_load_time.htm&release=264.0.0&type=5)**  
    Previews can take anywhere from 2-10 seconds to load and a thumbnail spinner is displayed. When a specific client preview takes a long time to load, refresh the page or try again later.
- **[What If I Have Multiple Business Units?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_and_mutlliple_business_units.htm&release=264.0.0&type=5)**  
    Switching between business units in Marketing Cloud Engagement doesn’t require logging in multiple times. Your authenticated credentials are remembered and previews are displayed.
- **[Can I Preview Email Personalization in Litmus?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_and_email_personalization.htm&release=264.0.0&type=5)**  
    Yes. Select a subscriber in Subscriber Preview and then select **Litmus** to preview how the selected subscriber’s personalization renders across multiple clients. Only previews emailed to your Litmus address display in your Litmus account.
- **[Can I Use Litmus Email Previews in Content Builder?](https://help.salesforce.com/s/articleView?id=mktg.mc_es_litmus_and_content_builder.htm&release=264.0.0&type=5)**  
    Yes. Litmus Email Previews are available everywhere that you use the Content Builder editor for emails.