Problems Importing Profile Data from BDC
By default MOSS imports data from a Master Connection first, which is typically Active Directory but could be another LDAP source. Once a successful master connection import completes, it is possible to import additional data from one or more BDC data sources, also known as supplemental data sources. This is very common, since many organizations keep the bulk of the interesting employee information in HR systems outside of Active Directory. Often these HR systems more accurate and up-to-date than Active Directory, and are therefore considered the official system of record for personnel data. Refer to Importing User Profiles on MSDN for additional information on profile importing.
A relationship between the Master Connection data and the entity methods in the BDC application definition must be established. This is done with an Identifier field. The Identifier is populated by the Master Connection, and then used as the foreign key when executing the BDC methods. In this picture, AccountName is the foreign key; however, most commonly this is a numeric value like PersonnelNumber. (view entire article ...)
