Can't fix this error in my Sql statment. Please help
Microsoft OLE DB Provider for ODBC Drivers error '80040e14'
[Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near the keyword 'WHERE'.
SQLStmt = "UPDATE Drawing_MAIN Set User_ID_Eng ='"+struser+"', Customer_ID ="+strcustomer+", "
SQLStmt = SQLStmt + "Contact_ID ="+strContactID+","
SQLStmt = SQLStmt + "Date_Entered = '"+session("DateEntered")+"', Date_Needed ='"+Session("DateNeeded")+"', "
SQLStmt = SQLStmt + "Date_Estimated_Completion ='"+strdateestcomp+"', Draw_Process ="+Session("Process")+", "
SQLStmt = SQLStmt + "Drawing_Type ="+strDrawingtype+", Project_Number ='"+strprojectnumber+"', "
SQLStmt = SQLStmt + "Drawing_Number ='"+strdrawingnumber+"', RFQ_Request_Number ="+strrequestnumber+", "
SQLStmt = SQLStmt + "Part_Number ='"+strpartnumber+"', Revision_Reason ='"+strreason+"', Request_Status ="+strdrawingstatus+", Priority = '" + strPriority + "',"
SQLStmt = SQLStmt + " Item ="+strItem+", Ack = " + strAck + ", AssignedTo = '" & strAssignedTo & "', AcknowledgedDate = '"+strAckDate+"',"
SQLStmt = SQLStmt + "WHERE Drawing_Request_Number = "+strdrwReqNum+""
Microsoft OLE DB Provider for ODBC Drivers error '80040e14'
[Microsoft][ODBC SQL Server Driver][SQL Server]Incorrect syntax near the keyword 'WHERE'.
SQLStmt = "UPDATE Drawing_MAIN Set User_ID_Eng ='"+struser+"', Customer_ID ="+strcustomer+", "
SQLStmt = SQLStmt + "Contact_ID ="+strContactID+","
SQLStmt = SQLStmt + "Date_Entered = '"+session("DateEntered")+"', Date_Needed ='"+Session("DateNeeded")+"', "
SQLStmt = SQLStmt + "Date_Estimated_Completion ='"+strdateestcomp+"', Draw_Process ="+Session("Process")+", "
SQLStmt = SQLStmt + "Drawing_Type ="+strDrawingtype+", Project_Number ='"+strprojectnumber+"', "
SQLStmt = SQLStmt + "Drawing_Number ='"+strdrawingnumber+"', RFQ_Request_Number ="+strrequestnumber+", "
SQLStmt = SQLStmt + "Part_Number ='"+strpartnumber+"', Revision_Reason ='"+strreason+"', Request_Status ="+strdrawingstatus+", Priority = '" + strPriority + "',"
SQLStmt = SQLStmt + " Item ="+strItem+", Ack = " + strAck + ", AssignedTo = '" & strAssignedTo & "', AcknowledgedDate = '"+strAckDate+"',"
SQLStmt = SQLStmt + "WHERE Drawing_Request_Number = "+strdrwReqNum+""