ios sync prob

Hi all , can somone help me with transfer my game on ipad to iphone , i never get the message to use icloud save game . i don’t now what im doing wrong , both icloud are on , same id , i don’t get the popup that ask for using the icloud save game . does someone have the same prob ?  thx 4 helping

Ive finaly got it worked , ist was a sync prob with icloud , on your first device log out off icloud then log back in , remove backup , renew backup , install game on second device , and popup will appear hope that it helpd some grts all