I would like to enter a couple of alphanumeric groups into a field on an input form. After I enter an alphanumeric group, I hit the enter and the data will add into the field and refresh to empty box ready for next entry. If I continue to enter another group and hit enter, the next group will be added to original field with a comma and a space in between. Can someone help build the VBA in after update event to accomplish the task. Thanks!