I want to set message background for my galaxy A71😥

[Aushi]

 Why doesn't work customize chat room for my Galaxy A71? 😭😭 It's been a while since I changed the Samsung Message background. Not a day goes by without the background wallpapers I put up

[Sacmeister]

I have answered one of your other questions.
That could be a solution for this issue as well.

Answer at
https://r2.community.samsung.com/t5/Galaxy-A/මගේ-samsung-Galaxy-A71-device-එකේ-මැසේජ්-ඇප්-එකේ-බැක්ග්-රවුන්ඩ්/td-p/8955358