@Anonymous

When we buy the raw inventory, I put it in the "Raw Inventory" account as an inventory assest.

If you are posting directly to inventory asset, that is wrong, you never post to inventory asset in QB if you are using inventory type items.  You use an item per raw material.

When the production is complete, I enter the QTY and the COGS.

The very first time you crate the inventory item for the finished product you can do this, after that the only way to increase inventory with qty and cost per item, is to enter a purchase.

A bundle (group) item will not work for this at all.

QBO is designed to buy and sell a widget nothing else, so to make something to sell requires a multi-step work around

Create a dummy bank account called in process
Create a dummy vendor called in-house

1. Use inventory adjust, set the adjusting account to the in process bank account and lower the qty of the raw material items you used - that puts the cost of what you used in the dummy bank.

2.  Use write checks on the in process bank account, do not print, select the inhouse vendor, in the item detail part of the check select the finished product item, enter the actual qty made, enter the total amount that is in the in process bank account, save.  That stocked the finished item with qty and cost, now you sell the finished item.