جرب الجملة التالية ..فقط قم بتغيير 'b' بالعبارة لديك لانها غير مفهومة
Forms!MainScreen!lstLastTrans.RowSource = "SELECT TransactionsT.TransID, TransactionsT.idEmp, TransactionsT.TransSubject, TransactionsT.TransCreatedOn, TransactionsT.TransToDept, TransactionsT.TransStatus, TransactionsT.TransType, TransactionsT.TransTitle, DateDiff(""d"",[TransactionsT]![TransCreatedOn],Now()) AS TransCreatedOn1 " & vbCrLf & _
"FROM TransactionsT " & vbCrLf & _
"WHERE (((TransactionsT.TransSubject) Is Not Null) AND ((TransactionsT.TransStatus) Not Like 'b') AND ((TransactionsT.TransType) Is Not Null) AND ((TransactionsT.TransTitle) Is Not Null)) " & vbCrLf & _
"ORDER BY DateDiff(""d"",[TransactionsT]![TransCreatedOn],Now()) DESC;"