KO01 Transcation

Hi i have a strange problem,i am creating BDC for

ko01 transcation(internal order),issue is whenever i

go for environment->Set CO area .i am giving some

controlling area,like 0120,then after assigning

controlling area,i will go for order type,after giving

value for order type when i press enter,it will again

pop up screen with some controlling area,here it's 0110.

problem is that these only happen when i give controlling area other than 0110 at intial step(environment->Set CO area ),but it won't pop up screen when i give controlling

area as 0110 initially(environment->Set CO area ),

i can write a code restricting these,but i am not sure of

why these is happening,pls let me know ,so i can proceed

with my BDC