vendor hierarchy

Hi all,

i created vendor hierarchy and assigned it to partner function for purchase order. <b>Then how it is further useful.?</b> I mean to ask in hierarchy if i created parent vendor as order reciever and child vendor as goods supplier, then will child vendor be automaticlly populated while doing MIGO ? as system is not doing it right now , or further config setting is require for that

pls clear

regards,

praful