I would like to export my customer database in order to export it to MailChimp, but when I export the client list, I could not get the birth date which I'm targeting to. I would like to send them a coupon for their birthdate :)
What version of nopCommerce are you using? (It's supported in 4.x) You would have to customize, or use SQL to pull it from the [GenericAttribute] table.