Hi,
I added some custom fields for the users at Settings > Control panel > Users > Custom fields. As far as good :-)
The issue is that I need to validate those fields at the checkout, but those fields are not selectable as Validation fields in Settings > Ecom > Orders > Validation groups (see image below) Only Order fields and Orderline fields are selecteble.
What is best procesdure to validate User custom fields?
Regards,
Tomás