still stuck on the same problem: I have a table of products, from which a user can create an order by using a form, and checking off the products they want. I need to create a code that automatically selects another product if one specific product is selected. For example, say product A requires that product B be selected. So, when a user selects product A on a form, I want product B to automatically be updated and selected. I know that this code should be on the 'after update' property of the check box. But that is all I know. I want to run an If/then statement, but get completely lost on the terminology and coding. If anyone has any suggestions, that would be great. Also, if its possible to use example code (and clarify which variables I will have to change according to my own names of fields), I would hugely appreciate it. Thanks!!