credit note from supplier

Dear all,

i have a basic requirement but not getting any result from dynamics, can any one please help me to find the process mentioned below.

i purchase item number 10000001 qty of 100 pcs and each cost is 10 $ so total value is 1000 $ value.

now my each value is 10 $ and supplier came and gave me 100 $ as credit note for this item.

so now i will deduct the amount of 100 $ from vendor account and will add to some additional account.

now i want to reduce the cost of this item from 10$ to 9$ so how can i have this process in ax.

Credit Note may be used for Purchase Return, but that would mean returning goods back to vendor.

Does simply reducing price on PO through discount at line item level answer your query.