AC 300 Install
From Accelerator for SageCRM
The Accelerator for Sage 300 client is installed as an Office 365 add-in only.
It requires an Office 365 subscription.
The url for the manifest is
https://update.crmtogether.com/sage300-manifest.xml
In future the add-in will be available from the Office 365 add-in store.
For a user to add in the manifest just for themselves open outlook and click the Get Add-ins button
Click the Custom add in area and add in the manifest URL above
Once added it will appear like this on the screen
Thats it for Installing the client for a single user.
Office365 does allow you deploy centrally also. Please see Microsofts documentation on how to do this.