Is there any why to use customer attribute for the guest customer(s)/user(s). Like I have a news letter with which I am getting
subscriber Email, Name, D.O.B., Country, all this information are getting stored in new columns
newsletter_subscriber table as because I have created new columns for this table.
Now the problem is users who are customers of my site we can get these information from the customer table but as newsletters can be subscribed by guests as well is there any way to use these attributes for guest users?