Hi I'm creating my first database, a have mi tables, but I need an input form. I had the relationship set up. but I would like to know why when I change de data type on my form# field from number to Autonumber in the table is not reflect on my form. I know only form and queries can contain calculates fields, so what I Did, have a table called over/short transaction table, from this table I create a query from that table to add a total field that calculate the total amount; Total:[Price] * [Quantity] , and after that I create a simple input form coming from that query. the name of tables: Itemstable, Customertable, EmployeesTable, Departmentstable, Data EntryTable, and MY Input table Over/short on this table i will get information from the other ones to populate my input form. please help me is there another easy way to have an input form.