Updating and deleting contacts in Exchange
If two or more users update a contact in their Exchange mailboxes and the contact is linked to the same single contact record in Sage CRM, the most recent update wins. The change is synched back immediately to the linked contact records in the other Exchange mailboxes.
If you delete a contact in your Exchange mailbox, it's removed from My CRM | Contacts. The contact is not deleted from the Sage CRM database.