Program question for phonak audeo q90 aids


i’m looking at a pair of phonak audeo q 90 aids and in the program i see under the acoustic parameters a box the has coupling for the title and asks for a code. what is that code for and is it needed? and is that code on the devices? thanks

ok i found out what it is for. and i do not need it. it turns out to be the numbers on the c chell of the device if it has one to help with the programing. so this need to go no further. thanks