Cost not capture at the time of Sales invoice

Hi All

I invoiced the sales order, and when i see the voucher there is no COGS account entry. This item is the stocked item and produce from the production order. I checked the production orders and there is the cost for each production order. Then i checked the packing slip journals there is the voucher for the transactions. Also i checked the Inventory transaction form and checked the transactions (packing slips) involved with this sales order invoice, there is the physical cost but no financial cost. Financial cost should be there after invoicing.

And when i generate the sales analysis report, it is showing 100% contribution ratio as the cost is zero.

What can be the reason for not capturing the cost, and how i can fix this issue.

Thanks in advance.