I installed the order attributes extention in the shop and I want that all the information that is placed in the boxes (squares) appear in the invoice.
I know that in the shop settings I can't do anything and perhaps I have to do this using codes, however I don't know in which way is possible. :'(
My understanding that order attributes should show in the invoice.
I do not know this extension well, but check if there is any setting that enables attribute to be visible to customers.