Need to know how to code a field to autonumber on a subform while I am inputting. I have a field that I want to start at 1 each time I go to enter a record. I want the field to sequentially increment from there and then I will save the record. When I go to enter a new record the field will start back at 1 and increase again. The subform stores part numbers and descriptions based on the PK known as the Catalog Number on the main form. Assistance with this is much appreciated.