Anyone got a tip for getting an Item's COGS Account to appear in a saved search? COGS Account is not available on the drop down not does {cogsaccount} return through a formula.

Do you mean the Expense Account/{expenseaccount}?

I've never worked with it. But there's a "COGS line" boolean, like "main line" or "tax line".

working on Item records

I believe @Kyle W is right. It’s called Expense account in saved searches