OH YEAH, it works - THANK YOU SO MUCH
Sub COPY_SQL()
Dim strSQL As String
Dim var_xxx As String
var_xxx = "1_1_1_1"
strSQL = "INSERT INTO Duplication_Test ( " & _
"KATALOG_ID, PROFIL_ID, CONCAT, SWERT ) " & _
"SELECT KATALOG_ID, PROFIL_ID, CONCAT, SWERT " & _
"FROM Working_Table_KAP1 " &...