Reading current UNB Reference numbers from Biztalk

While migrating EDIFACT partners from Biztalk 2006 to 2010, we had to read the current UNB Reference numbers from the Biztalk 2006 database. They are stored in the BiztalkMsgBoxDb database in table EdiSequenceNumbers. Using the column PartyId, one can link the numbers to the EDI party information from database BiztalkMgmtDb, table EdiPartnerEdifactInterchange. BTW, beginning from Biztalk 2009, you can directly set the UNB Reference number before sending the EDIFACT XML to the EDI Send Pipeline, hence it might be useful to create the number by oneself.