Purchasing
If I have 2 Apple ID accounts, but I live in America, can I put a American Apple Gift card into my Finnish account? How does this work?
Question marked as
It would have to be a gift from somebody in Finland.
"You can't redeem Apple Gift Cards or App Store & iTunes Gift Cards outside of the country or region of purchase."
From this document:
If you can't redeem your Apple Gift Card or App Store & iTunes Gift Card - https://support.apple.com/HT201195