Sets the specified session variable when called from a snippet procedure. The name of the session variable must be declared for the site.
It is not allowed to set the same variable multiple times during a page load. To avoid this, you can call this procedure from an Access Control procedure to initialize variables such as SessionId that are used by multiple snippets.
EXEC SoftadminSnippet.Session_SetVariable @Name = 'MyVariable', @Value = N'Value';