The BBIS API uses BBNC objects, like the Profile.PreferredEmail field, which doesn't allow for an email address type to be specified. If this call is used, BBIS Profile Update Transaction batches in CRM are missing the email address type on primary email addresses. BBNC/RE don't allow for the Preferred Email Address to have a type, but BBIS/CRM does have this granularity and my organization would very much appreciate this functionality.