A default lifecycle definition is assigned to a category so that Vault objects assigned to the category assume the properties of the default lifecycle definition if another lifecycle definition is not specified.
Click Tools > Administration > Vault Settings.
In the Vault Settings dialog box, select the Behaviors tab > Categories.
In the Configure Categories dialog box, select the type of Vault objects for which you want to configure categories from the drop-down menu.
Select the category to which you want to assign the default lifecycle.
Select the Lifecycle tab > Assign.
In the Assign Category dialog box, do one of the following:
Click OK. The Configure Categories dialog box is updated.