Material extend

hi,

my problem is when we r creating sales order and giving perticuler material it says that material is not defined in sales org 9000 and dist chnl 99.so how can i define the same material for 9000 sales org also.remember tht material is already defined in 1000.so csn we create same material in two different sales org.if yes please guide me what steps should be followed.

thanks.