https://us.community.samsung.com/t5/Galaxy-S22/S22-Ultra-Message-Background/m-p/2399770#M38969 Are you using the default messages app which is now google messages or are you using samsung messages. Google messages you can't customize them on this phone Maybe it'll be available later. Samsung messages you go into a conversation and the option is there and you can select apply to all chats. Mon, 03 Oct 2022 14:15:52 GMT LauraRG 2022-10-03T14:15:52Z