Vault Store. Shows the vault store that will be used to store items archived from the selected mailbox. Click Change if you want to select a different vault store.

Indexing Service. Shows the Indexing Service that will be used to index items archived from the selected mailbox. Click Change if you want to select a different Indexing Service.

Retention Category. Shows the Retention Category to apply to items when archiving from selected mailbox. This setting can be overridden by the user, who can select from the available Retention Categories.

If the policy that is applied to the mailbox has Force users to use policy and target settings for mailbox archiving selected, the Retention Category shown here will be ignored and the one specified by the policy will be used.