MRG Installation on RHEL 7

Hi,

I am trying to install MRG on RHEL 7 by following the documentation in Chapter 1. Quickly Install MRG Messaging.

When executing the yum command (yum groupinstall "MRG Messaging"), I get an error stating "Group MRG Messaging does not exist".
Can anyone please help?

Thanks!

[root@localhost /]# yum groupinstall "MRG Messaging"
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
Warning: group MRG Messaging does not exist.
Maybe run: yum groups mark install (see man yum)
No packages in any requested group available to install or update

[root@localhost /]# lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 7.2 (Maipo)
Release: 7.2
Codename: Maipo

[root@localhost /]# subscription-manager list

+-------------------------------------------+
Installed Product Status
+-------------------------------------------+
Product Name: Red Hat Software Collections (for RHEL Server)
Product ID: 201
Version: 2
Arch: x86_64
Status: Subscribed
Status Details:
Starts: 24/07/2016
Ends: 24/07/2017

Product Name: Red Hat Enterprise Linux Server
Product ID: 69
Version: 7.2
Arch: x86_64
Status: Subscribed
Status Details:
Starts: 24/07/2016
Ends: 24/07/2017

Product Name: Red Hat Enterprise Linux Server - Extended Update Support
Product ID: 70
Version: 7.2
Arch: x86_64
Status: Subscribed
Status Details:
Starts: 24/07/2016
Ends: 24/07/2017

[root@localhost /]# yum groups list hidden
Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager
Available Environment Groups:
Minimal Install
Infrastructure Server
File and Print Server
Basic Web Server
Virtualization Host
Server with GUI
Installed Groups:
Base
Common NetworkManager submodules
Core
Desktop Debugging and Performance Tools
Development Tools
Dial-up Networking Support
Directory Client
E-mail Server
Fonts
Graphical Administration Tools
Guest Agents
Guest Desktop Agents
Hardware Monitoring Utilities
Input Methods
Internet Applications
Internet Browser
Legacy UNIX Compatibility
Legacy X Window System Compatibility
MariaDB Database Client
MariaDB Database Server
Multimedia
Network Infrastructure Server
Networking Tools
Performance Tools
Perl Support
Print Server
Printing Client
Remote Desktop Clients
Security Tools
System Administration Tools
X Window System
Available Groups:
Additional Development
Anaconda Tools
Backup Client
Backup Server
Compatibility Libraries
Conflicts (Server)
Console Internet Tools
DNS Name Server
Debugging Tools
Directory Server
Emacs
FTP Server
File and Storage Server
GNOME
Graphics Creation Tools
High Availability
Identity Management Server
Infiniband Support
Java Platform
KDE
Large Systems Performance
Load Balancer
Mainframe Access
Network File System Client
Office Suite and Productivity
PHP Support
Perl for Web
Platform Development
PostgreSQL Database Client
PostgreSQL Database Server
Python
Remote Management for Linux
Resilient Storage
Ruby Support
Scientific Support
Smart Card Support
System Management
Technical Writing
Virtualization Client
Virtualization Hypervisor
Virtualization Platform
Virtualization Tools
Web Server
Web Servlet Engine
Done