Hi j_Bryan,
within a UNION ALL you have 2 SELECT statements ... which of the 2 did you want the WHERE clause to operate, 1st, 2nd or both? I suspect you need:
SELECT tblServiceAddress.SID, tblServiceAddress.ServiceStreet, 1 as Sort, tblServiceAddress.CID FROM tblServiceAddress
Where CID = Forms!frmBid.cboCustomer
UNION ALL
select Number, Text, 0 as Sort, Forms!frmBid.cboCustomer as CID from wrk_New
ORDER BY Sort, tblServiceAddress.ServiceStreet;
lwadwell