Validate multiple checkbox group

Question

I have a form, with multiple checkboxes (over 150). I need the user to select at lease one item. I know how to do this one checkbox group.
Because I have too many checkboxes, I decided to group them in different tabs, So I created multiple checkbox groups. Now I need to make sure that user selects at least one checkbox from EITHER groups.
I tried to name the groups the same and make them required, but that causes that user select an item from each group. All I need to do is validate the form so that only one item from either group satisfies the requirement and we can move forward.

Can you please help.
Thanks

GreyHead · Accepted Answer

Hi omidhz,

You will need to write a Custom validation to check that - or re-design the form - you could probably use a Custom Code action with a table layout to group them in four or five columns in the same checkbox group.

Bob