system give error massage “no entry found from the list of values”

Hi all

I want to setup pricing list in oracle OM
So I got
Order Mgt -->Pricing -->Pricing list setup--> enter name , currency---> line list---> product contest select as item--> Product attribute select as item number --> then I try to select Product value

Then system popup a item flexile but when I try select item form it system give error massage “no entry found from the list of values”

 

 thanks