How to Use AEM MSM (Multi-Site Manager)

Adobe Experience Manager (AEM) is a powerful content management solution for building websites, mobile apps, and forms. One of its standout features for global organizations is MSM (Multi-Site Manager). MSM allows companies to manage multiple websites, across different regions and languages, with shared content, structure, and branding — all from a centralized source.

In this blog, we’ll explain what AEM MSM is, how it works, and how to use it effectively to streamline content management across multiple sites and languages.


What is AEM Multi-Site Manager (MSM)?

AEM MSM is a feature that enables organizations to reuse and manage content across multiple sites. Instead of duplicating content manually for different markets or regions, MSM uses blueprints and live copies to automate content propagation and ensure consistency across websites.

This is especially useful for:

Multinational companies with websites in different languages

Brands with regional variations of the same site

Businesses that want consistent design and messaging with localized content


Key Concepts in MSM

Before diving into how to use MSM, let’s understand the core components:

Blueprint

A blueprint is the master source of content. It defines the structure and components that will be replicated across other sites.


Live Copy

A live copy is a clone of the blueprint. It remains linked to the blueprint so that updates to the original can be synchronized across all live copies.


Rollout

The process of pushing changes from the blueprint to the live copies is called a rollout. Rollouts can be triggered automatically or manually.


Inheritance and Detachment

Live copies inherit content from the blueprint by default. If you want to localize a particular section (e.g., change a banner for a regional promotion), you can break the inheritance and make manual edits.


How to Use AEM MSM

1. Create a Blueprint Configuration

Go to the Blueprint Configuration in AEM and define your blueprint. This will serve as your master site.

Navigate to /tools/acs-tools/msm/blueprints

Define rollout configurations (e.g., which pages to roll out, when to roll out)


2. Build the Blueprint Site

Create your master site in AEM Sites. This will contain your global structure, design, templates, and default content.


3. Create Live Copies

From the Sites console:

Select the page or site you want to use as the source

Choose Create → Live Copy

Specify the destination (e.g., /content/uk, /content/fr, etc.)

Choose a rollout configuration


4. Manage Rollouts

You can:

Roll out changes manually from the source using Rollout Page

Set automatic rollouts triggered by specific events like page activation or modification


5. Customize Local Content

For regional personalization:

Navigate to a live copy

Break inheritance on specific components

Add region-specific content while keeping global design and structure intact


Benefits of Using MSM

Consistency: Ensure brand consistency across all sites

Efficiency: Make updates once and push them globally

Localization: Customize content for local markets without affecting the global version

Scalability: Easily manage dozens or even hundreds of regional sites


Conclusion

AEM’s Multi-Site Manager is a game-changer for organizations managing multiple websites. It reduces redundancy, increases speed to market, and maintains brand consistency across regions and languages. By understanding and implementing blueprints, live copies, and rollouts effectively, your team can achieve global content governance with local flexibility — all within the powerful AEM platform.


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