when Project PO was invoiced, items were sold to project at the same time

Hi,

Does anyone know that why the items were sold to project when Project PO was invoiced?

i need seperate this process as below.

PO → received → invoiced → consume in production.

but, as now

at the same time with invoicing, all item are sold and i can’t use PO items in picking list.

what should i do?

That is due to the Item Consumption Project parameter. If it is enabled, the posting of purchase product Receipt/invoice will result the posting of related sale packing slip/Invoice.