Supplier Cost Pricing per Inventory
It is very common for suppliers to temporarily change the price of an item (e.g. in a sale) that we already stock which we therefore buy. We are looking for the ability to allocate this cheaper-priced stock to a new price and once it is sold through, the old price would automatically return, or stick depending on settings, for the remaining (old-priced) stock. This would therefore make calculating profit margins a lot easier and save a lot of time as you would be able to quickly look back to see what inventory was bought at what price.
To help this process it would also be very useful to have a supplier price on the delivery page per purchase order for quick reference.