Offline Navigation :
a) In MS CRM we can customize navigation area and menu items by ISV Config ans Sitemap.We can use the “Client” attribute on an ISV Config or SiteMap node to configure which Microsoft Dynamics CRM clients display the customization. This is useful if we only want our custom navigation element to show in the Web or only in the Microsoft Dynamics CRM for Outlook client .We can mention the cllient property as below,
This client attribute can take parameters as below,
b) If we need to disable custom navigation or buttons when the user is offline, we need to set the “AvailableOffline” attribute of the element to false.