How would I use the EMS to set the customattribute1 value on both contacts and user accounts? can't find any answers anywhere.... thanks

If you just want to do one contact or user ata time: Set-MailContact -Identity <ContactIdentity> -CustomAttribute1 "Foo" Set-Mailbox -Identity <MailboxIdentity> -CustomAttribute1 "Foo" or Set-MailUser -Identity <UserIdentity> -CustomAttribute1 "Foo" Now, if you want to do multiple, you will need touse the corresponding get- cmdlet ina piped command: This will change all Mailusers: Get-MailUser | Set-MailUser -CustomAttribute1 "Foo" This will change mailusers who are in a specific organizational unit: Get-MailUser -OrganizationalUnit westcoast.contoso.com/users | Set-MailUser -CustomAttribute1 "Foo" Go to this link to get the recipient cmdlets and parametersthat you want to use: http://technet.microsoft.com/en-us/library/bb124233(EXCHG.80).aspx

thanks!