Error Message

"Enterprise Vault is not available because your primary mailbox is not enabled for use with Enterprise Vault. Contact your Help Desk for details of how to resolve this issue"

Workaround:

Two workarounds exist for this issue.  Option 1 is for use on a per user basis that each user can perform.  Option 2 is for using a programmatic approach to allow an organization to send a background processing job to each affected user.

Option 1:

When pop-up appears, click the checkbox that says "Do Not Show this message again" and proceed.

Option 2:

Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.  

Deploy the following registry fix:

Dword: HideSecondaryStoreEnabledInfo
Location: HKEY_CURRENT_USER\SOFTWARE\KVS\Enterprise Vault\Client
Value: 0 - (Default) The message is shown.
Value: 1 - The message is not shown.
Description: Controls whether the Enterprise Vault Outlook Add-In shows the message in the Error Message section above.

Note: Adding and setting this registry value to 1 has the same effect as populating the "Do not show this message again" check-box.

The primary mailbox is the first Exchange mailbox that was added to a user's profile in Outlook. This is an expected behavior of the Enterprise Vault Outlook Add-in by design.