New installations of SuMo for Salesforce should use the most recent Generally Available (GA) version, i.e. version 8.63.2.
To begin the installation you will need to have been provided with an installation URL (via email) for the most recent GA version of the SuMo package. Please contact your CloudApps representative if you have not received this. To begin the installation process, click on the URL link in the email (or paste the URL into your browser address bar).
If you aren't already logged in, you will be re-directed to the Salesforce.com login screen and prompted to enter login credentials for the org into which you wish to install the application. Log in using your System Administrator credentials (this user must have a full 'Salesforce' licence) to begin the installation.
Following a successful login, you will be presented with the "Package Installation" screen.
Select the "Install for Admins Only" radio button
If you would like to see additional details, click on the "View Components" link at the bottom of the screen.
Click the "Install" button:
The installation usually takes several minutes to complete, and you will typically see a message indicating this. In these circumstances you will receive an email notification message once the installation has completed.
Then you will be able to continue with the Post-Install Steps. These steps need to be completed by a System Administrator, and the user must be assigned a SuMo licence.